20312001130312 has 16 divisors (see below), whose sum is σ = 38114686473840. Its totient is φ = 10148084737296.

The previous prime is 20312001130279. The next prime is 20312001130339. The reversal of 20312001130312 is 21303110021302.

It is a self number, because there is not a number n which added to its sum of digits gives 20312001130312.

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, 989467578 + ... + 989488105.

It is an arithmetic number, because the mean of its divisors is an integer number (2382167904615).

Almost surely, 2^{20312001130312} is an apocalyptic number.

It is an amenable number.

20312001130312 is a deficient number, since it is larger than the sum of its proper divisors (17802685343528).

20312001130312 is a wasteful number, since it uses less digits than its factorization.

20312001130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978956972 (or 1978956968 counting only the distinct ones).

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

Adding to 20312001130312 its reverse (21303110021302), we get a palindrome (41615111151614).

The spelling of 20312001130312 in words is "twenty trillion, three hundred twelve billion, one million, one hundred thirty thousand, three hundred twelve".