123455052532 has 18 divisors (see below), whose sum is σ = 251319214482. Its totient is φ = 52909308144.

The previous prime is 123455052499. The next prime is 123455052541. The reversal of 123455052532 is 235250554321.

It can be written as a sum of positive squares in only one way, i.e., 118408939236 + 5046113296 = 344106^2 + 71036^2 .

It is a super-2 number, since 2×123455052532² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123455052491 and 123455052500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314936163 + ... + 314936554.

Almost surely, 2^123455052532 is an apocalyptic number.

It is an amenable number.

123455052532 is an abundant number, since it is smaller than the sum of its proper divisors (127864161950).

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

123455052532 is a wasteful number, since it uses less digits than its factorization.

123455052532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629872735 (or 629872726 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 123455052532 in words is "one hundred twenty-three billion, four hundred fifty-five million, fifty-two thousand, five hundred thirty-two".