20320330232 has 32 divisors (see below), whose sum is σ = 38487900000. Its totient is φ = 10057074048.

The previous prime is 20320330229. The next prime is 20320330253. The reversal of 20320330232 is 23203302302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 921269 + ... + 943067.

It is an arithmetic number, because the mean of its divisors is an integer number (1202746875).

Almost surely, 2^20320330232 is an apocalyptic number.

It is an amenable number.

20320330232 is a deficient number, since it is larger than the sum of its proper divisors (18167569768).

20320330232 is a wasteful number, since it uses less digits than its factorization.

20320330232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22983 (or 22979 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 20.

Adding to 20320330232 its reverse (23203302302), we get a palindrome (43523632534).

The spelling of 20320330232 in words is "twenty billion, three hundred twenty million, three hundred thirty thousand, two hundred thirty-two".