20312001013311 has 24 divisors (see below), whose sum is σ = 33531110645760. Its totient is φ = 11606792528016.

The previous prime is 20312001013267. The next prime is 20312001013373. The reversal of 20312001013311 is 11331010021302.

20312001013311 is a `hidden beast` number, since 2 + 0 + 31 + 200 + 101 + 331 + 1 = 666.

It is not a de Polignac number, because 20312001013311 - 2⁹ = 20312001012799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312001015311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11804626 + ... + 13415408.

It is an arithmetic number, because the mean of its divisors is an integer number (1397129610240).

Almost surely, 2^{20312001013311} is an apocalyptic number.

20312001013311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20312001013311 is a deficient number, since it is larger than the sum of its proper divisors (13219109632449).

20312001013311 is a wasteful number, since it uses less digits than its factorization.

20312001013311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810955 (or 1810952 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20312001013311 its reverse (11331010021302), we get a palindrome (31643011034613).

The spelling of 20312001013311 in words is "twenty trillion, three hundred twelve billion, one million, thirteen thousand, three hundred eleven".