20320320332 has 12 divisors (see below), whose sum is σ = 38295988416. Its totient is φ = 9378609360.

The previous prime is 20320320323. The next prime is 20320320341. The reversal of 20320320332 is 23302302302.

It is an interprime number because it is at equal distance from previous prime (20320320323) and next prime (20320320341).

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, 195387644 + ... + 195387747.

It is an arithmetic number, because the mean of its divisors is an integer number (3191332368).

Almost surely, 2^20320320332 is an apocalyptic number.

It is an amenable number.

20320320332 is a deficient number, since it is larger than the sum of its proper divisors (17975668084).

20320320332 is a wasteful number, since it uses less digits than its factorization.

20320320332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390775408 (or 390775406 counting only the distinct ones).

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

Adding to 20320320332 its reverse (23302302302), we get a palindrome (43622622634).

The spelling of 20320320332 in words is "twenty billion, three hundred twenty million, three hundred twenty thousand, three hundred thirty-two".