23012031 has 8 divisors (see below), whose sum is σ = 35065984. Its totient is φ = 13149720.

The previous prime is 23011997. The next prime is 23012047. The reversal of 23012031 is 13021032.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23012031 - 2⁹ = 23011519 is a prime.

It is a super-2 number, since 2×23012031² = 1059107141489922, 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 = 23011998 and 23012016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23011031) 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, 547885 + ... + 547926.

It is an arithmetic number, because the mean of its divisors is an integer number (4383248).

Almost surely, 2^23012031 is an apocalyptic number.

23012031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23012031 is a deficient number, since it is larger than the sum of its proper divisors (12053953).

23012031 is a wasteful number, since it uses less digits than its factorization.

23012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095821.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 23012031 is about 4797.0856777840. The cubic root of 23012031 is about 284.4362756658.

Adding to 23012031 its reverse (13021032), we get a palindrome (36033063).

Subtracting from 23012031 its reverse (13021032), we obtain a palindrome (9990999).

The spelling of 23012031 in words is "twenty-three million, twelve thousand, thirty-one".