2123303131 has 8 divisors (see below), whose sum is σ = 2160864720. Its totient is φ = 2086061568.

The previous prime is 2123303123. The next prime is 2123303141. The reversal of 2123303131 is 1313033212.

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 2123303131 - 2³ = 2123303123 is a prime.

It is a super-2 number, since 2×2123303131² = 9016832372228806322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123303099 and 2123303108.

It is not an unprimeable number, because it can be changed into a prime (2123303101) 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, 66601 + ... + 93178.

It is an arithmetic number, because the mean of its divisors is an integer number (270108090).

Almost surely, 2^2123303131 is an apocalyptic number.

2123303131 is a deficient number, since it is larger than the sum of its proper divisors (37561589).

2123303131 is a wasteful number, since it uses less digits than its factorization.

2123303131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160013.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2123303131 is about 46079.3134822992. The cubic root of 2123303131 is about 1285.2984980825.

Adding to 2123303131 its reverse (1313033212), we get a palindrome (3436336343).

The spelling of 2123303131 in words is "two billion, one hundred twenty-three million, three hundred three thousand, one hundred thirty-one".