31301404023231 has 6 divisors (see below), whose sum is σ = 45213139144680. Its totient is φ = 20867602682148.

The previous prime is 31301404023181. The next prime is 31301404023257. The reversal of 31301404023231 is 13232040410313.

It is a happy number.

31301404023231 is a `hidden beast` number, since 3 + 1 + 3 + 0 + 1 + 404 + 0 + 23 + 231 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-31301404023231 is a prime.

It is a super-2 number, since 2×31301404023231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31301404023195 and 31301404023204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301404033231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1738966890171 + ... + 1738966890188.

It is an arithmetic number, because the mean of its divisors is an integer number (7535523190780).

Almost surely, 2^{31301404023231} is an apocalyptic number.

31301404023231 is a deficient number, since it is larger than the sum of its proper divisors (13911735121449).

31301404023231 is a wasteful number, since it uses less digits than its factorization.

31301404023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3477933780365 (or 3477933780362 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31301404023231 its reverse (13232040410313), we get a palindrome (44533444433544).

The spelling of 31301404023231 in words is "thirty-one trillion, three hundred one billion, four hundred four million, twenty-three thousand, two hundred thirty-one".