23120001 has 12 divisors (see below), whose sum is σ = 33480720. Its totient is φ = 15374040.

The previous prime is 23119973. The next prime is 23120029. The reversal of 23120001 is 10002132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23119973) and next prime (23120029).

It is not a de Polignac number, because 23120001 - 2⁶ = 23119937 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 (23120401) 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, 706 + ... + 6836.

It is an arithmetic number, because the mean of its divisors is an integer number (2790060).

Almost surely, 2^23120001 is an apocalyptic number.

It is an amenable number.

23120001 is a deficient number, since it is larger than the sum of its proper divisors (10360719).

23120001 is a wasteful number, since it uses less digits than its factorization.

23120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6556 (or 6553 counting only the distinct ones).

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

The square root of 23120001 is about 4808.3262160548. The cubic root of 23120001 is about 284.8804299899.

Adding to 23120001 its reverse (10002132), we get a palindrome (33122133).

The spelling of 23120001 in words is "twenty-three million, one hundred twenty thousand, one".