20232131 has 8 divisors (see below), whose sum is σ = 21408000. Its totient is φ = 19067400.

The previous prime is 20232127. The next prime is 20232133. The reversal of 20232131 is 13123202.

It is a happy number.

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 20232131 - 2² = 20232127 is a prime.

It is a super-2 number, since 2×20232131² = 818678249602322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20232133) 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, 1106 + ... + 6456.

It is an arithmetic number, because the mean of its divisors is an integer number (2676000).

Almost surely, 2^20232131 is an apocalyptic number.

20232131 is a deficient number, since it is larger than the sum of its proper divisors (1175869).

20232131 is a wasteful number, since it uses less digits than its factorization.

20232131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5569.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20232131 is about 4498.0141173634. The cubic root of 20232131 is about 272.4878921759.

Adding to 20232131 its reverse (13123202), we get a palindrome (33355333).

The spelling of 20232131 in words is "twenty million, two hundred thirty-two thousand, one hundred thirty-one".