21310002113232 has 80 divisors (see below), whose sum is σ = 62968518364032. Its totient is φ = 6083416481280.

The previous prime is 21310002113201. The next prime is 21310002113249. The reversal of 21310002113232 is 23231120001312.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 21310002113199 and 21310002113208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26454423 + ... + 27248054.

Almost surely, 2^{21310002113232} is an apocalyptic number.

It is an amenable number.

21310002113232 is an abundant number, since it is smaller than the sum of its proper divisors (41658516250800).

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

21310002113232 is a wasteful number, since it uses less digits than its factorization.

21310002113232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53703676 (or 53703670 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21310002113232 its reverse (23231120001312), we get a palindrome (44541122114544).

The spelling of 21310002113232 in words is "twenty-one trillion, three hundred ten billion, two million, one hundred thirteen thousand, two hundred thirty-two".