21312101302032 has 40 divisors (see below), whose sum is σ = 55056530399584. Its totient is φ = 7103999096064.

The previous prime is 21312101302027. The next prime is 21312101302127. The reversal of 21312101302032 is 23020310121312.

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, 10028988 + ... + 11966820.

Almost surely, 2^{21312101302032} is an apocalyptic number.

It is an amenable number.

21312101302032 is an abundant number, since it is smaller than the sum of its proper divisors (33744429097552).

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

21312101302032 is a wasteful number, since it uses less digits than its factorization.

21312101302032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166967 (or 2166961 counting only the distinct ones).

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

Adding to 21312101302032 its reverse (23020310121312), we get a palindrome (44332411423344).

The spelling of 21312101302032 in words is "twenty-one trillion, three hundred twelve billion, one hundred one million, three hundred two thousand, thirty-two".