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123012212231130 = 2356742160817951
BaseRepresentation
bin11011111110000100000011…
…001101101000101111011010
3121010112212000120111221010020
4123332010003031220233122
5112110413002312344010
61113343010302531310
734624224202533525
oct3376040315505732
9533485016457106
10123012212231130
1136217205978992
1211968710b96b36
13538400406b931
142253b73c2bbbc
15e34c6b08d470
hex6fe103368bda

123012212231130 has 32 divisors (see below), whose sum is σ = 295233693101568. Its totient is φ = 32802769512000.

The previous prime is 123012212231107. The next prime is 123012212231149. The reversal of 123012212231130 is 31132212210321.

It is a self number, because there is not a number n which added to its sum of digits gives 123012212231130.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28386346 + ... + 32431605.

It is an arithmetic number, because the mean of its divisors is an integer number (9226052909424).

Almost surely, 2123012212231130 is an apocalyptic number.

123012212231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123012212231130 is an abundant number, since it is smaller than the sum of its proper divisors (172221480870438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123012212231130 is a wasteful number, since it uses less digits than its factorization.

123012212231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60885382.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123012212231130 its reverse (31132212210321), we get a palindrome (154144424441451).

The spelling of 123012212231130 in words is "one hundred twenty-three trillion, twelve billion, two hundred twelve million, two hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 67421 134842 202263 337105 404526 674210 1011315 2022630 60817951 121635902 182453853 304089755 364907706 608179510 912269265 1824538530 4100407074371 8200814148742 12301221223113 20502035371855 24602442446226 41004070743710 61506106115565 123012212231130