23131311033 has 8 divisors (see below), whose sum is σ = 30848076000. Its totient is φ = 15417710048.

The previous prime is 23131311017. The next prime is 23131311059. The reversal of 23131311033 is 33011313132.

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 23131311033 - 2⁴ = 23131311017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23131391033) 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, 773883 + ... + 803216.

It is an arithmetic number, because the mean of its divisors is an integer number (3856009500).

Almost surely, 2^23131311033 is an apocalyptic number.

It is an amenable number.

23131311033 is a deficient number, since it is larger than the sum of its proper divisors (7716764967).

23131311033 is a wasteful number, since it uses less digits than its factorization.

23131311033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581991.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 23131311033 its reverse (33011313132), we get a palindrome (56142624165).

The spelling of 23131311033 in words is "twenty-three billion, one hundred thirty-one million, three hundred eleven thousand, thirty-three".