31331201311322 has 32 divisors (see below), whose sum is σ = 51362637663744. Its totient is φ = 14215526362800.

The previous prime is 31331201311313. The next prime is 31331201311343. The reversal of 31331201311322 is 22311310213313.

It is a super-2 number, since 2×31331201311322² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31331201311291 and 31331201311300.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40402883 + ... + 41171049.

It is an arithmetic number, because the mean of its divisors is an integer number (1605082426992).

Almost surely, 2^{31331201311322} is an apocalyptic number.

31331201311322 is a deficient number, since it is larger than the sum of its proper divisors (20031436352422).

31331201311322 is a wasteful number, since it uses less digits than its factorization.

31331201311322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771554.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31331201311322 its reverse (22311310213313), we get a palindrome (53642511524635).

The spelling of 31331201311322 in words is "thirty-one trillion, three hundred thirty-one billion, two hundred one million, three hundred eleven thousand, three hundred twenty-two".