23342531 has 4 divisors (see below), whose sum is σ = 23352672. Its totient is φ = 23332392.

The previous prime is 23342521. The next prime is 23342533. The reversal of 23342531 is 13524332.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23342531 - 2⁶ = 23342467 is a prime.

It is a super-2 number, since 2×23342531² = 1089747506971922, 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 = 23342497 and 23342506.

It is not an unprimeable number, because it can be changed into a prime (23342533) 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, 230 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (5838168).

Almost surely, 2^23342531 is an apocalyptic number.

23342531 is a deficient number, since it is larger than the sum of its proper divisors (10141).

23342531 is an equidigital number, since it uses as much as digits as its factorization.

23342531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140.

The product of its digits is 2160, while the sum is 23.

The square root of 23342531 is about 4831.4108705429. The cubic root of 23342531 is about 285.7915045214.

Adding to 23342531 its reverse (13524332), we get a palindrome (36866863).

The spelling of 23342531 in words is "twenty-three million, three hundred forty-two thousand, five hundred thirty-one".