20312310100311 has 16 divisors (see below), whose sum is σ = 30141401514720. Its totient is φ = 13519449452160.

The previous prime is 20312310100307. The next prime is 20312310100391. The reversal of 20312310100311 is 11300101321302.

20312310100311 is a `hidden beast` number, since 2 + 0 + 31 + 2 + 310 + 10 + 0 + 311 = 666.

It is not a de Polignac number, because 20312310100311 - 2² = 20312310100307 is a prime.

It is a super-2 number, since 2×20312310100311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312310100391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 613611330 + ... + 613644431.

It is an arithmetic number, because the mean of its divisors is an integer number (1883837594670).

Almost surely, 2^{20312310100311} is an apocalyptic number.

20312310100311 is a deficient number, since it is larger than the sum of its proper divisors (9829091414409).

20312310100311 is a wasteful number, since it uses less digits than its factorization.

20312310100311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227256383 (or 1227256377 counting only the distinct ones).

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

Adding to 20312310100311 its reverse (11300101321302), we get a palindrome (31612411421613).

The spelling of 20312310100311 in words is "twenty trillion, three hundred twelve billion, three hundred ten million, one hundred thousand, three hundred eleven".