23901331 has 4 divisors (see below), whose sum is σ = 23986072. Its totient is φ = 23816592.

The previous prime is 23901299. The next prime is 23901359. The reversal of 23901331 is 13310932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23901331 - 2⁵ = 23901299 is a prime.

It is a super-2 number, since 2×23901331² = 1142547247143122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23901391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41946 + ... + 42511.

It is an arithmetic number, because the mean of its divisors is an integer number (5996518).

Almost surely, 2^23901331 is an apocalyptic number.

23901331 is a deficient number, since it is larger than the sum of its proper divisors (84741).

23901331 is an equidigital number, since it uses as much as digits as its factorization.

23901331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84740.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 23901331 is about 4888.8987512527. The cubic root of 23901331 is about 288.0540785473.

It can be divided in two parts, 2390 and 1331, that added together give a square (3721 = 61²).

The spelling of 23901331 in words is "twenty-three million, nine hundred one thousand, three hundred thirty-one".