31112133133331 has 8 divisors (see below), whose sum is σ = 31953543619920. Its totient is φ = 30270751174368.

The previous prime is 31112133133267. The next prime is 31112133133337. The reversal of 31112133133331 is 13333133121113.

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

It is a cyclic number.

It is not a de Polignac number, because 31112133133331 - 2⁶ = 31112133133267 is a prime.

It is a super-2 number, since 2×31112133133331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31112133133294 and 31112133133303.

It is not an unprimeable number, because it can be changed into a prime (31112133133337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4912001 + ... + 9292578.

It is an arithmetic number, because the mean of its divisors is an integer number (3994192952490).

Almost surely, 2^{31112133133331} is an apocalyptic number.

31112133133331 is a deficient number, since it is larger than the sum of its proper divisors (841410486589).

31112133133331 is a wasteful number, since it uses less digits than its factorization.

31112133133331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14263813.

The product of its digits is 4374, while the sum is 29.

Adding to 31112133133331 its reverse (13333133121113), we get a palindrome (44445266254444).

The spelling of 31112133133331 in words is "thirty-one trillion, one hundred twelve billion, one hundred thirty-three million, one hundred thirty-three thousand, three hundred thirty-one".