20903823032 has 16 divisors (see below), whose sum is σ = 40459012800. Its totient is φ = 10114752960.

The previous prime is 20903823029. The next prime is 20903823043. The reversal of 20903823032 is 23032830902.

It is a self number, because there is not a number n which added to its sum of digits gives 20903823032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42144557 + ... + 42145052.

It is an arithmetic number, because the mean of its divisors is an integer number (2528688300).

Almost surely, 2^20903823032 is an apocalyptic number.

It is an amenable number.

20903823032 is a deficient number, since it is larger than the sum of its proper divisors (19555189768).

20903823032 is a wasteful number, since it uses less digits than its factorization.

20903823032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84289646 (or 84289642 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 20903823032 in words is "twenty billion, nine hundred three million, eight hundred twenty-three thousand, thirty-two".