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BaseRepresentation
bin11100000010011101011111…
…101000101110000101110001
3121011121202001021221220021212
4130002131133220232011301
5112130340403044424041
61114133505205325505
734655113023035066
oct3402353750560561
9534552037856255
10123314410545521
1136323390a53338
12119b71aa706895
1353a666445b890
142264640cccc6d
15e3ca567348eb
hex70275fa2e171

123314410545521 has 16 divisors (see below), whose sum is σ = 135037526243088. Its totient is φ = 111912590649600.

The previous prime is 123314410545397. The next prime is 123314410545539. The reversal of 123314410545521 is 125545014413321.

Adding to 123314410545521 its reverse (125545014413321), we get a palindrome (248859424958842).

It can be written as a sum of positive squares in 8 ways, for example, as 674533690000 + 122639876855521 = 821300^2 + 11074289^2 .

It is not a de Polignac number, because 123314410545521 - 226 = 123314343436657 is a prime.

It is a super-2 number, since 2×1233144105455212 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123314410547521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32983250 + ... + 36531131.

It is an arithmetic number, because the mean of its divisors is an integer number (8439845390193).

Almost surely, 2123314410545521 is an apocalyptic number.

It is an amenable number.

123314410545521 is a deficient number, since it is larger than the sum of its proper divisors (11723115697567).

123314410545521 is a wasteful number, since it uses less digits than its factorization.

123314410545521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69516692.

The product of its (nonzero) digits is 288000, while the sum is 41.

The spelling of 123314410545521 in words is "one hundred twenty-three trillion, three hundred fourteen billion, four hundred ten million, five hundred forty-five thousand, five hundred twenty-one".