23312001 has 4 divisors (see below), whose sum is σ = 31082672. Its totient is φ = 15541332.

The previous prime is 23311991. The next prime is 23312011. The reversal of 23312001 is 10021332.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23311991) and next prime (23312011).

It is not a de Polignac number, because 23312001 - 2¹⁸ = 23049857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23312011) 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, 3885331 + ... + 3885336.

It is an arithmetic number, because the mean of its divisors is an integer number (7770668).

Almost surely, 2^23312001 is an apocalyptic number.

It is an amenable number.

23312001 is a deficient number, since it is larger than the sum of its proper divisors (7770671).

23312001 is an equidigital number, since it uses as much as digits as its factorization.

23312001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7770670.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 23312001 is about 4828.2503041992. The cubic root of 23312001 is about 285.6668533522. Note that the first 3 decimals are identical.

Adding to 23312001 its reverse (10021332), we get a palindrome (33333333).

The spelling of 23312001 in words is "twenty-three million, three hundred twelve thousand, one".