20131023032 has 32 divisors (see below), whose sum is σ = 41102370000. Its totient is φ = 9206926848.

The previous prime is 20131023023. The next prime is 20131023037. The reversal of 20131023032 is 23032013102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131023032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131023037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2279057 + ... + 2287872.

Almost surely, 2^20131023032 is an apocalyptic number.

It is an amenable number.

20131023032 is an abundant number, since it is smaller than the sum of its proper divisors (20971346968).

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

20131023032 is a wasteful number, since it uses less digits than its factorization.

20131023032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566983 (or 4566979 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20131023032 its reverse (23032013102), we get a palindrome (43163036134).

The spelling of 20131023032 in words is "twenty billion, one hundred thirty-one million, twenty-three thousand, thirty-two".