31213114400441 has 4 divisors (see below), whose sum is σ = 31214961019392. Its totient is φ = 31211267781492.

The previous prime is 31213114400431. The next prime is 31213114400543. The reversal of 31213114400441 is 14400441131213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31213114400441 - 2²⁶ = 31213047291577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31213114400431) 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, 923284121 + ... + 923317926.

It is an arithmetic number, because the mean of its divisors is an integer number (7803740254848).

Almost surely, 2^{31213114400441} is an apocalyptic number.

It is an amenable number.

31213114400441 is a deficient number, since it is larger than the sum of its proper divisors (1846618951).

31213114400441 is a wasteful number, since it uses less digits than its factorization.

31213114400441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1846618950.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 31213114400441 its reverse (14400441131213), we get a palindrome (45613555531654).

The spelling of 31213114400441 in words is "thirty-one trillion, two hundred thirteen billion, one hundred fourteen million, four hundred thousand, four hundred forty-one".