23012001 has 12 divisors (see below), whose sum is σ = 33334912. Its totient is φ = 15297336.

The previous prime is 23011997. The next prime is 23012047. The reversal of 23012001 is 10021032.

It is a happy number.

It is not a de Polignac number, because 23012001 - 2² = 23011997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23022001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181 + ... + 6786.

Almost surely, 2^23012001 is an apocalyptic number.

It is an amenable number.

23012001 is a deficient number, since it is larger than the sum of its proper divisors (10322911).

23012001 is a wasteful number, since it uses less digits than its factorization.

23012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340 (or 7337 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 23012001 is about 4797.0825508844. The cubic root of 23012001 is about 284.4361520624.

Adding to 23012001 its reverse (10021032), we get a palindrome (33033033).

The spelling of 23012001 in words is "twenty-three million, twelve thousand, one".