23072031 has 12 divisors (see below), whose sum is σ = 33429552. Its totient is φ = 15333696.

The previous prime is 23072003. The next prime is 23072039. The reversal of 23072031 is 13027032.

It is not a de Polignac number, because 23072031 - 2⁵ = 23071999 is a prime.

It is a super-2 number, since 2×23072031² = 1064637228929922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23071995 and 23072013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23072039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 771 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (2785796).

Almost surely, 2^23072031 is an apocalyptic number.

23072031 is a deficient number, since it is larger than the sum of its proper divisors (10357521).

23072031 is a wasteful number, since it uses less digits than its factorization.

23072031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7950 (or 7947 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 23072031 is about 4803.3354036544. The cubic root of 23072031 is about 284.6832677079.

Adding to 23072031 its reverse (13027032), we get a palindrome (36099063).

The spelling of 23072031 in words is "twenty-three million, seventy-two thousand, thirty-one".