313131400022 has 16 divisors (see below), whose sum is σ = 536805777312. Its totient is φ = 134196898560.

The previous prime is 313131400013. The next prime is 313131400033. The reversal of 313131400022 is 220004131313.

It is a junction number, because it is equal to n+sod(n) for n = 313131399967 and 313131400003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871718 + ... + 1177350.

It is an arithmetic number, because the mean of its divisors is an integer number (33550361082).

Almost surely, 2^313131400022 is an apocalyptic number.

313131400022 is a deficient number, since it is larger than the sum of its proper divisors (223674377290).

313131400022 is a wasteful number, since it uses less digits than its factorization.

313131400022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378823.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 313131400022 its reverse (220004131313), we get a palindrome (533135531335).

The spelling of 313131400022 in words is "three hundred thirteen billion, one hundred thirty-one million, four hundred thousand, twenty-two".