3123133320331 has 4 divisors (see below), whose sum is σ = 3123140339200. Its totient is φ = 3123126301464.

The previous prime is 3123133320317. The next prime is 3123133320337. The reversal of 3123133320331 is 1330233313213.

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 3123133320331 - 2²⁹ = 3122596449419 is a prime.

It is a super-2 number, since 2×3123133320331² (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 3123133320331.

It is not an unprimeable number, because it can be changed into a prime (3123133320337) 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, 2793276 + ... + 3748153.

It is an arithmetic number, because the mean of its divisors is an integer number (780785084800).

Almost surely, 2^{3123133320331} is an apocalyptic number.

3123133320331 is a deficient number, since it is larger than the sum of its proper divisors (7018869).

3123133320331 is an equidigital number, since it uses as much as digits as its factorization.

3123133320331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7018868.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 3123133320331 its reverse (1330233313213), we get a palindrome (4453366633544).

The spelling of 3123133320331 in words is "three trillion, one hundred twenty-three billion, one hundred thirty-three million, three hundred twenty thousand, three hundred thirty-one".