23131037 has 4 divisors (see below), whose sum is σ = 24348480. Its totient is φ = 21913596.

The previous prime is 23131027. The next prime is 23131057. The reversal of 23131037 is 73013132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23131037 - 2¹² = 23126941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131027) 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, 608693 + ... + 608730.

It is an arithmetic number, because the mean of its divisors is an integer number (6087120).

Almost surely, 2^23131037 is an apocalyptic number.

It is an amenable number.

23131037 is a deficient number, since it is larger than the sum of its proper divisors (1217443).

23131037 is a wasteful number, since it uses less digits than its factorization.

23131037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217442.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 23131037 is about 4809.4736718273. The cubic root of 23131037 is about 284.9257506384.

Adding to 23131037 its reverse (73013132), we get a palindrome (96144169).

The spelling of 23131037 in words is "twenty-three million, one hundred thirty-one thousand, thirty-seven".