2123232331 has 4 divisors (see below), whose sum is σ = 2316253464. Its totient is φ = 1930211200.

The previous prime is 2123232317. The next prime is 2123232337. The reversal of 2123232331 is 1332323212.

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 2123232331 - 2⁵ = 2123232299 is a prime.

It is a super-2 number, since 2×2123232331² = 9016231062807387122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123232337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96510550 + ... + 96510571.

It is an arithmetic number, because the mean of its divisors is an integer number (579063366).

Almost surely, 2^2123232331 is an apocalyptic number.

2123232331 is a deficient number, since it is larger than the sum of its proper divisors (193021133).

2123232331 is a wasteful number, since it uses less digits than its factorization.

2123232331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193021132.

The product of its digits is 1296, while the sum is 22.

The square root of 2123232331 is about 46078.5452352828. The cubic root of 2123232331 is about 1285.2842121422.

Adding to 2123232331 its reverse (1332323212), we get a palindrome (3455555543).

The spelling of 2123232331 in words is "two billion, one hundred twenty-three million, two hundred thirty-two thousand, three hundred thirty-one".