23131213223033 has 4 divisors (see below), whose sum is σ = 23197491771300. Its totient is φ = 23064934674768.

The previous prime is 23131213223011. The next prime is 23131213223059. The reversal of 23131213223033 is 33032231213132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12545742748009 + 10585470475024 = 3541997^2 + 3253532^2 .

It is a cyclic number.

It is not a de Polignac number, because 23131213223033 - 2¹⁴ = 23131213206649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23131213222987 and 23131213223005.

It is not an unprimeable number, because it can be changed into a prime (23131213223633) 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, 33139273610 + ... + 33139274307.

It is an arithmetic number, because the mean of its divisors is an integer number (5799372942825).

Almost surely, 2^{23131213223033} is an apocalyptic number.

It is an amenable number.

23131213223033 is a deficient number, since it is larger than the sum of its proper divisors (66278548267).

23131213223033 is an equidigital number, since it uses as much as digits as its factorization.

23131213223033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66278548266.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 23131213223033 its reverse (33032231213132), we get a palindrome (56163444436165).

The spelling of 23131213223033 in words is "twenty-three trillion, one hundred thirty-one billion, two hundred thirteen million, two hundred twenty-three thousand, thirty-three".