23313331 has 2 divisors, whose sum is σ = 23313332. Its totient is φ = 23313330.

The previous prime is 23313299. The next prime is 23313337. The reversal of 23313331 is 13331332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23313331 - 2⁵ = 23313299 is a prime.

It is a super-2 number, since 2×23313331² = 1087022804631122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23313299 and 23313308.

It is not a weakly prime, because it can be changed into another prime (23313337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11656665 + 11656666.

It is an arithmetic number, because the mean of its divisors is an integer number (11656666).

Almost surely, 2^23313331 is an apocalyptic number.

23313331 is a deficient number, since it is larger than the sum of its proper divisors (1).

23313331 is an equidigital number, since it uses as much as digits as its factorization.

23313331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 19.

The square root of 23313331 is about 4828.3880332881. The cubic root of 23313331 is about 285.6722858859.

Adding to 23313331 its reverse (13331332), we get a palindrome (36644663).

The spelling of 23313331 in words is "twenty-three million, three hundred thirteen thousand, three hundred thirty-one".