31214204403131 has 4 divisors (see below), whose sum is σ = 31423695708000. Its totient is φ = 31004713098264.

The previous prime is 31214204403091. The next prime is 31214204403157. The reversal of 31214204403131 is 13130440241213.

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 31214204403131 - 2²⁶ = 31214137294267 is a prime.

It is a super-2 number, since 2×31214204403131² (a number of 28 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 = 31214204403094 and 31214204403103.

It is not an unprimeable number, because it can be changed into a prime (31214204403331) 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, 104745652211 + ... + 104745652508.

It is an arithmetic number, because the mean of its divisors is an integer number (7855923927000).

Almost surely, 2^{31214204403131} is an apocalyptic number.

31214204403131 is a deficient number, since it is larger than the sum of its proper divisors (209491304869).

31214204403131 is a wasteful number, since it uses less digits than its factorization.

31214204403131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209491304868.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 31214204403131 its reverse (13130440241213), we get a palindrome (44344644644344).

The spelling of 31214204403131 in words is "thirty-one trillion, two hundred fourteen billion, two hundred four million, four hundred three thousand, one hundred thirty-one".