20313111232 has 56 divisors (see below), whose sum is σ = 43588131264. Its totient is φ = 9355702272.

The previous prime is 20313111229. The next prime is 20313111241. The reversal of 20313111232 is 23211131302.

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, 147483 + ... + 249754.

Almost surely, 2^20313111232 is an apocalyptic number.

It is an amenable number.

20313111232 is an abundant number, since it is smaller than the sum of its proper divisors (23275020032).

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

20313111232 is a wasteful number, since it uses less digits than its factorization.

20313111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397313 (or 397303 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20313111232 its reverse (23211131302), we get a palindrome (43524242534).

The spelling of 20313111232 in words is "twenty billion, three hundred thirteen million, one hundred eleven thousand, two hundred thirty-two".