2323121321231 has 4 divisors (see below), whose sum is σ = 2324513247000. Its totient is φ = 2321729395464.

The previous prime is 2323121321221. The next prime is 2323121321233. The reversal of 2323121321231 is 1321231213232.

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

It is a cyclic number.

It is not a de Polignac number, because 2323121321231 - 2¹⁰ = 2323121320207 is a prime.

It is a super-2 number, since 2×2323121321231² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2323121321231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2323121321233) 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, 695960381 + ... + 695963718.

It is an arithmetic number, because the mean of its divisors is an integer number (581128311750).

Almost surely, 2^{2323121321231} is an apocalyptic number.

2323121321231 is a deficient number, since it is larger than the sum of its proper divisors (1391925769).

2323121321231 is a wasteful number, since it uses less digits than its factorization.

2323121321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391925768.

The product of its digits is 2592, while the sum is 26.

Adding to 2323121321231 its reverse (1321231213232), we get a palindrome (3644352534463).

The spelling of 2323121321231 in words is "two trillion, three hundred twenty-three billion, one hundred twenty-one million, three hundred twenty-one thousand, two hundred thirty-one".