3131110120231 has 4 divisors (see below), whose sum is σ = 3144903557112. Its totient is φ = 3117316683352.

The previous prime is 3131110120219. The next prime is 3131110120241. The reversal of 3131110120231 is 1320210111313.

3131110120231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3131110120231 - 2¹⁵ = 3131110087463 is a prime.

It is a super-2 number, since 2×3131110120231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131110120199 and 3131110120208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131110120241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6896718100 + ... + 6896718553.

It is an arithmetic number, because the mean of its divisors is an integer number (786225889278).

Almost surely, 2^{3131110120231} is an apocalyptic number.

3131110120231 is a deficient number, since it is larger than the sum of its proper divisors (13793436881).

3131110120231 is a wasteful number, since it uses less digits than its factorization.

3131110120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13793436880.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 3131110120231 its reverse (1320210111313), we get a palindrome (4451320231544).

The spelling of 3131110120231 in words is "three trillion, one hundred thirty-one billion, one hundred ten million, one hundred twenty thousand, two hundred thirty-one".