123306357644652 has 96 divisors (see below), whose sum is σ = 354319239439872. Its totient is φ = 32501194131456.

The previous prime is 123306357644651. The next prime is 123306357644669. The reversal of 123306357644652 is 256446753603321.

It is a super-2 number, since 2×123306357644652² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123306357644592 and 123306357644601.

It is not an unprimeable number, because it can be changed into a prime (123306357644651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31416738 + ... + 35122985.

It is an arithmetic number, because the mean of its divisors is an integer number (3690825410832).

Almost surely, 2^{123306357644652} is an apocalyptic number.

123306357644652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123306357644652 is an abundant number, since it is smaller than the sum of its proper divisors (231012881795220).

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

123306357644652 is a wasteful number, since it uses less digits than its factorization.

123306357644652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66541447 (or 66541445 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 57.

The spelling of 123306357644652 in words is "one hundred twenty-three trillion, three hundred six billion, three hundred fifty-seven million, six hundred forty-four thousand, six hundred fifty-two".