21350125132 has 24 divisors (see below), whose sum is σ = 42703646720. Its totient is φ = 9149325840.

The previous prime is 21350125127. The next prime is 21350125157. The reversal of 21350125132 is 23152105312.

It is a junction number, because it is equal to n+sod(n) for n = 21350125097 and 21350125106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 476719 + ... + 519577.

Almost surely, 2^21350125132 is an apocalyptic number.

It is an amenable number.

21350125132 is an abundant number, since it is smaller than the sum of its proper divisors (21353521588).

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

21350125132 is a wasteful number, since it uses less digits than its factorization.

21350125132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60661 (or 60659 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 21350125132 in words is "twenty-one billion, three hundred fifty million, one hundred twenty-five thousand, one hundred thirty-two".