23213241133121 has 12 divisors (see below), whose sum is σ = 25610500052028. Its totient is φ = 21023312716224.

The previous prime is 23213241133109. The next prime is 23213241133207. The reversal of 23213241133121 is 12133114231232.

It can be written as a sum of positive squares in 6 ways, for example, as 2080243713025 + 21132997420096 = 1442305^2 + 4597064^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23213241133121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23213241133321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1295806670 + ... + 1295824583.

It is an arithmetic number, because the mean of its divisors is an integer number (2134208337669).

Almost surely, 2^{23213241133121} is an apocalyptic number.

It is an amenable number.

23213241133121 is a deficient number, since it is larger than the sum of its proper divisors (2397258918907).

23213241133121 is a wasteful number, since it uses less digits than its factorization.

23213241133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591631332 (or 2591631319 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

Adding to 23213241133121 its reverse (12133114231232), we get a palindrome (35346355364353).

The spelling of 23213241133121 in words is "twenty-three trillion, two hundred thirteen billion, two hundred forty-one million, one hundred thirty-three thousand, one hundred twenty-one".