31131311113322 has 8 divisors (see below), whose sum is σ = 53367961908576. Its totient is φ = 13341990477132.

The previous prime is 31131311113321. The next prime is 31131311113327. The reversal of 31131311113322 is 22331111313113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31131311113291 and 31131311113300.

It is not an unprimeable number, because it can be changed into a prime (31131311113321) 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, 1111832539748 + ... + 1111832539775.

It is an arithmetic number, because the mean of its divisors is an integer number (6670995238572).

Almost surely, 2^{31131311113322} is an apocalyptic number.

31131311113322 is a deficient number, since it is larger than the sum of its proper divisors (22236650795254).

31131311113322 is a wasteful number, since it uses less digits than its factorization.

31131311113322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2223665079532.

The product of its digits is 972, while the sum is 26.

Adding to 31131311113322 its reverse (22331111313113), we get a palindrome (53462422426435).

The spelling of 31131311113322 in words is "thirty-one trillion, one hundred thirty-one billion, three hundred eleven million, one hundred thirteen thousand, three hundred twenty-two".