31204441334131 has 12 divisors (see below), whose sum is σ = 33861778953912. Its totient is φ = 28742420606016.

The previous prime is 31204441334119. The next prime is 31204441334167. The reversal of 31204441334131 is 13143314440213.

It is a de Polignac number, because none of the positive numbers 2^k-31204441334131 is a prime.

It is a super-2 number, since 2×31204441334131² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31204441334111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 197610226 + ... + 197768071.

It is an arithmetic number, because the mean of its divisors is an integer number (2821814912826).

Almost surely, 2^{31204441334131} is an apocalyptic number.

31204441334131 is a deficient number, since it is larger than the sum of its proper divisors (2657337619781).

31204441334131 is a wasteful number, since it uses less digits than its factorization.

31204441334131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395378790 (or 395378777 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 31204441334131 its reverse (13143314440213), we get a palindrome (44347755774344).

The spelling of 31204441334131 in words is "thirty-one trillion, two hundred four billion, four hundred forty-one million, three hundred thirty-four thousand, one hundred thirty-one".