31233300133 has 32 divisors (see below), whose sum is σ = 39536017920. Its totient is φ = 24041318400.

The previous prime is 31233300127. The next prime is 31233300149. The reversal of 31233300133 is 33100333213.

It is not a de Polignac number, because 31233300133 - 2⁵ = 31233300101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31233300103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1105483 + ... + 1133383.

It is an arithmetic number, because the mean of its divisors is an integer number (1235500560).

Almost surely, 2^31233300133 is an apocalyptic number.

It is an amenable number.

31233300133 is a deficient number, since it is larger than the sum of its proper divisors (8302717787).

31233300133 is a wasteful number, since it uses less digits than its factorization.

31233300133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28357.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 31233300133 its reverse (33100333213), we get a palindrome (64333633346).

The spelling of 31233300133 in words is "thirty-one billion, two hundred thirty-three million, three hundred thousand, one hundred thirty-three".