31200113344331 has 12 divisors (see below), whose sum is σ = 33146722077264. Its totient is φ = 29362253706000.

The previous prime is 31200113344319. The next prime is 31200113344417. The reversal of 31200113344331 is 13344331100213.

It is not a de Polignac number, because 31200113344331 - 2¹⁴ = 31200113327947 is a prime.

It is a super-2 number, since 2×31200113344331² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31200113344294 and 31200113344303.

It is not an unprimeable number, because it can be changed into a prime (31200113344931) 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, 286127300 + ... + 286236321.

It is an arithmetic number, because the mean of its divisors is an integer number (2762226839772).

Almost surely, 2^{31200113344331} is an apocalyptic number.

31200113344331 is a deficient number, since it is larger than the sum of its proper divisors (1946608732933).

31200113344331 is a wasteful number, since it uses less digits than its factorization.

31200113344331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572363810 (or 572363791 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 31200113344331 its reverse (13344331100213), we get a palindrome (44544444444544).

The spelling of 31200113344331 in words is "thirty-one trillion, two hundred billion, one hundred thirteen million, three hundred forty-four thousand, three hundred thirty-one".