20320524111 has 16 divisors (see below), whose sum is σ = 28772432640. Its totient is φ = 12720435840.

The previous prime is 20320524079. The next prime is 20320524113. The reversal of 20320524111 is 11142502302.

It is not a de Polignac number, because 20320524111 - 2⁵ = 20320524079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320524113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1570995 + ... + 1583876.

It is an arithmetic number, because the mean of its divisors is an integer number (1798277040).

Almost surely, 2^20320524111 is an apocalyptic number.

20320524111 is a deficient number, since it is larger than the sum of its proper divisors (8451908529).

20320524111 is a wasteful number, since it uses less digits than its factorization.

20320524111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155006.

The product of its (nonzero) digits is 480, while the sum is 21.

The spelling of 20320524111 in words is "twenty billion, three hundred twenty million, five hundred twenty-four thousand, one hundred eleven".