23102001 has 12 divisors (see below), whose sum is σ = 35936628. Its totient is φ = 14216544.

The previous prime is 23101999. The next prime is 23102021. The reversal of 23102001 is 10020132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4309776 + 18792225 = 2076^2 + 4335^2 .

It is not a de Polignac number, because 23102001 - 2¹ = 23101999 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23102021) 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, 98610 + ... + 98843.

It is an arithmetic number, because the mean of its divisors is an integer number (2994719).

Almost surely, 2^23102001 is an apocalyptic number.

It is an amenable number.

23102001 is a deficient number, since it is larger than the sum of its proper divisors (12834627).

23102001 is a wasteful number, since it uses less digits than its factorization.

23102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197472 (or 197469 counting only the distinct ones).

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

The square root of 23102001 is about 4806.4540983973. The cubic root of 23102001 is about 284.8064798911.

Adding to 23102001 its reverse (10020132), we get a palindrome (33122133).

The spelling of 23102001 in words is "twenty-three million, one hundred two thousand, one".