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123311201211301 = 17371669627718713
BaseRepresentation
bin11100000010011010100000…
…010110000101001110100101
3121011121102202122000211101111
4130002122200112011032211
5112130312320002230201
61114132214522225021
734654640343120415
oct3402324026051645
9534542678024344
10123311201211301
1136321a94405004
12119b6653955171
1353a62725a254c
142264418994645
15e3c919ae0b51
hex7026a05853a5

123311201211301 has 32 divisors (see below), whose sum is σ = 134202470081760. Its totient is φ = 112829242761216.

The previous prime is 123311201211299. The next prime is 123311201211377. The reversal of 123311201211301 is 103112102113321.

It can be written as a sum of positive squares in 16 ways, for example, as 25570316024100 + 97740885187201 = 5056710^2 + 9886399^2 .

It is a cyclic number.

It is not a de Polignac number, because 123311201211301 - 21 = 123311201211299 is a prime.

It is a super-2 number, since 2×1233112012113012 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123311201211701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6589591521 + ... + 6589610233.

It is an arithmetic number, because the mean of its divisors is an integer number (4193827190055).

Almost surely, 2123311201211301 is an apocalyptic number.

It is an amenable number.

123311201211301 is a deficient number, since it is larger than the sum of its proper divisors (10891268870459).

123311201211301 is a wasteful number, since it uses less digits than its factorization.

123311201211301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26713.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 123311201211301 its reverse (103112102113321), we get a palindrome (226423303324622).

The spelling of 123311201211301 in words is "one hundred twenty-three trillion, three hundred eleven billion, two hundred one million, two hundred eleven thousand, three hundred one".

Divisors: 1 17 37 629 1669 6277 18713 28373 61753 106709 232249 318121 692381 1049801 3948233 10476313 11770477 31231997 117461501 178097321 387623581 530943949 1155583889 1996845517 4346075537 6589600877 19644926113 73883284129 196043245169 3332735167873 7253600071253 123311201211301