23210001 has 12 divisors (see below), whose sum is σ = 35290320. Its totient is φ = 14658840.

The previous prime is 23209997. The next prime is 23210003. The reversal of 23210001 is 10001232.

It is a happy number.

It is not a de Polignac number, because 23210001 - 2² = 23209997 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (23210003) 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, 67695 + ... + 68036.

It is an arithmetic number, because the mean of its divisors is an integer number (2940860).

Almost surely, 2^23210001 is an apocalyptic number.

It is an amenable number.

23210001 is a deficient number, since it is larger than the sum of its proper divisors (12080319).

23210001 is a wasteful number, since it uses less digits than its factorization.

23210001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135756 (or 135753 counting only the distinct ones).

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

The square root of 23210001 is about 4817.6758919628. The cubic root of 23210001 is about 285.2496058902.

Adding to 23210001 its reverse (10001232), we get a palindrome (33211233).

It can be divided in two parts, 232 and 10001, that multiplied together give a palindrome (2320232).

The spelling of 23210001 in words is "twenty-three million, two hundred ten thousand, one".