23321001 has 16 divisors (see below), whose sum is σ = 34262208. Its totient is φ = 13992000.

The previous prime is 23320987. The next prime is 23321041. The reversal of 23321001 is 10012332.

It is a happy number.

It is not a de Polignac number, because 23321001 - 2¹⁰ = 23319977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23321041) 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, 166 + ... + 6831.

It is an arithmetic number, because the mean of its divisors is an integer number (2141388).

Almost surely, 2^23321001 is an apocalyptic number.

It is an amenable number.

23321001 is a deficient number, since it is larger than the sum of its proper divisors (10941207).

23321001 is a wasteful number, since it uses less digits than its factorization.

23321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 23321001 is about 4829.1822289079. The cubic root of 23321001 is about 285.7036108274.

Adding to 23321001 its reverse (10012332), we get a palindrome (33333333).

It can be divided in two parts, 2332 and 1001, that multiplied together give a palindrome (2334332).

The spelling of 23321001 in words is "twenty-three million, three hundred twenty-one thousand, one".