123402231212100 has 36 divisors (see below), whose sum is σ = 357043788974544. Its totient is φ = 32907261656480.

The previous prime is 123402231212093. The next prime is 123402231212119. The reversal of 123402231212100 is 1212132204321.

It is a super-2 number, since 2×123402231212100² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 205670385054 + ... + 205670385653.

Almost surely, 2^{123402231212100} is an apocalyptic number.

123402231212100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123402231212100 is an abundant number, since it is smaller than the sum of its proper divisors (233641557762444).

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

123402231212100 is a wasteful number, since it uses less digits than its factorization.

123402231212100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411340770724 (or 411340770717 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 123402231212100 its reverse (1212132204321), we get a palindrome (124614363416421).

The spelling of 123402231212100 in words is "one hundred twenty-three trillion, four hundred two billion, two hundred thirty-one million, two hundred twelve thousand, one hundred".