21000131130032 has 10 divisors (see below), whose sum is σ = 40687754064468. Its totient is φ = 10500065565008.

The previous prime is 21000131129983. The next prime is 21000131130163. The reversal of 21000131130032 is 23003113100012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656254097798 + ... + 656254097829.

Almost surely, 2^{21000131130032} is an apocalyptic number.

It is an amenable number.

21000131130032 is a deficient number, since it is larger than the sum of its proper divisors (19687622934436).

21000131130032 is a wasteful number, since it uses less digits than its factorization.

21000131130032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312508195635 (or 1312508195629 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21000131130032 its reverse (23003113100012), we get a palindrome (44003244230044).

The spelling of 21000131130032 in words is "twenty-one trillion, one hundred thirty-one million, one hundred thirty thousand, thirty-two".