31013033230133 has 4 divisors (see below), whose sum is σ = 31015809450528. Its totient is φ = 31010257009740.

The previous prime is 31013033230061. The next prime is 31013033230181. The reversal of 31013033230133 is 33103233031013.

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 31013033230133 - 2⁸ = 31013033229877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013033230183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388093441 + ... + 1388115782.

It is an arithmetic number, because the mean of its divisors is an integer number (7753952362632).

Almost surely, 2^{31013033230133} is an apocalyptic number.

It is an amenable number.

31013033230133 is a deficient number, since it is larger than the sum of its proper divisors (2776220395).

31013033230133 is a wasteful number, since it uses less digits than its factorization.

31013033230133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776220394.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 31013033230133 its reverse (33103233031013), we get a palindrome (64116266261146).

The spelling of 31013033230133 in words is "thirty-one trillion, thirteen billion, thirty-three million, two hundred thirty thousand, one hundred thirty-three".