23243031 has 20 divisors (see below), whose sum is σ = 39682192. Its totient is φ = 13281408.

The previous prime is 23243021. The next prime is 23243047. The reversal of 23243031 is 13034232.

23243031 is a `hidden beast` number, since 232 + 430 + 3 + 1 = 666.

It is not a de Polignac number, because 23243031 - 2¹⁴ = 23226647 is a prime.

It is a super-2 number, since 2×23243031² = 1080476980133922, 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 = 23242995 and 23243013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23243021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19930 + ... + 21063.

Almost surely, 2^23243031 is an apocalyptic number.

23243031 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23243031 is a deficient number, since it is larger than the sum of its proper divisors (16439161).

23243031 is an equidigital number, since it uses as much as digits as its factorization.

23243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41012 (or 41003 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23243031 is about 4821.1026747001. The cubic root of 23243031 is about 285.3848540339.

Adding to 23243031 its reverse (13034232), we get a palindrome (36277263).

The spelling of 23243031 in words is "twenty-three million, two hundred forty-three thousand, thirty-one".