31311211839441 has 4 divisors (see below), whose sum is σ = 41748282452592. Its totient is φ = 20874141226292.

The previous prime is 31311211839433. The next prime is 31311211839451. The reversal of 31311211839441 is 14493811211313.

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 31311211839441 - 2³ = 31311211839433 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31311211839393 and 31311211839402.

It is not an unprimeable number, because it can be changed into a prime (31311211839451) 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, 5218535306571 + ... + 5218535306576.

It is an arithmetic number, because the mean of its divisors is an integer number (10437070613148).

Almost surely, 2^{31311211839441} is an apocalyptic number.

It is an amenable number.

31311211839441 is a deficient number, since it is larger than the sum of its proper divisors (10437070613151).

31311211839441 is a wasteful number, since it uses less digits than its factorization.

31311211839441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437070613150.

The product of its digits is 62208, while the sum is 42.

The spelling of 31311211839441 in words is "thirty-one trillion, three hundred eleven billion, two hundred eleven million, eight hundred thirty-nine thousand, four hundred forty-one".