23801331 has 4 divisors (see below), whose sum is σ = 31735112. Its totient is φ = 15867552.

The previous prime is 23801321. The next prime is 23801333. The reversal of 23801331 is 13310832.

It is a happy number.

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

It is not a de Polignac number, because 23801331 - 2⁷ = 23801203 is a prime.

It is a super-2 number, since 2×23801331² = 1133006714743122, 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 = 23801298 and 23801307.

It is not an unprimeable number, because it can be changed into a prime (23801333) 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, 3966886 + ... + 3966891.

It is an arithmetic number, because the mean of its divisors is an integer number (7933778).

Almost surely, 2^23801331 is an apocalyptic number.

23801331 is a deficient number, since it is larger than the sum of its proper divisors (7933781).

23801331 is an equidigital number, since it uses as much as digits as its factorization.

23801331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7933780.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 23801331 is about 4878.6607793533. The cubic root of 23801331 is about 287.6517902931.

The spelling of 23801331 in words is "twenty-three million, eight hundred one thousand, three hundred thirty-one".