20320331032 has 32 divisors (see below), whose sum is σ = 39140381520. Its totient is φ = 9883036800.

The previous prime is 20320331029. The next prime is 20320331039. The reversal of 20320331032 is 23013302302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320331039) 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, 1730782 + ... + 1742482.

Almost surely, 2^20320331032 is an apocalyptic number.

It is an amenable number.

20320331032 is a deficient number, since it is larger than the sum of its proper divisors (18820050488).

20320331032 is a wasteful number, since it uses less digits than its factorization.

20320331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17611 (or 17607 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20320331032 its reverse (23013302302), we get a palindrome (43333633334).

The spelling of 20320331032 in words is "twenty billion, three hundred twenty million, three hundred thirty-one thousand, thirty-two".