31233323112133 has 4 divisors (see below), whose sum is σ = 31420348999200. Its totient is φ = 31046297225068.

The previous prime is 31233323112023. The next prime is 31233323112137. The reversal of 31233323112133 is 33121132333213.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31233323112133 - 2³³ = 31224733177541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31233323112095 and 31233323112104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233323112137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93512943283 + ... + 93512943616.

It is an arithmetic number, because the mean of its divisors is an integer number (7855087249800).

Almost surely, 2^{31233323112133} is an apocalyptic number.

It is an amenable number.

31233323112133 is a deficient number, since it is larger than the sum of its proper divisors (187025887067).

31233323112133 is a wasteful number, since it uses less digits than its factorization.

31233323112133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187025887066.

The product of its digits is 17496, while the sum is 31.

Adding to 31233323112133 its reverse (33121132333213), we get a palindrome (64354455445346).

The spelling of 31233323112133 in words is "thirty-one trillion, two hundred thirty-three billion, three hundred twenty-three million, one hundred twelve thousand, one hundred thirty-three".