23122001 has 16 divisors (see below), whose sum is σ = 27525120. Its totient is φ = 19005840.

The previous prime is 23121971. The next prime is 23122007. The reversal of 23122001 is 10022132.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-23122001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23122007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27140 + ... + 27978.

It is an arithmetic number, because the mean of its divisors is an integer number (1720320).

Almost surely, 2^23122001 is an apocalyptic number.

It is an amenable number.

23122001 is a deficient number, since it is larger than the sum of its proper divisors (4403119).

23122001 is a wasteful number, since it uses less digits than its factorization.

23122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 23122001 is about 4808.5341841355. The cubic root of 23122001 is about 284.8886442979. Note that the first 3 decimals are identical.

Adding to 23122001 its reverse (10022132), we get a palindrome (33144133).

The spelling of 23122001 in words is "twenty-three million, one hundred twenty-two thousand, one".