23021232001 has 4 divisors (see below), whose sum is σ = 23044048900. Its totient is φ = 22998415104.

The previous prime is 23021231999. The next prime is 23021232041. The reversal of 23021232001 is 10023212032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13912438401 + 9108793600 = 117951^2 + 95440^2 .

It is a cyclic number.

It is not a de Polignac number, because 23021232001 - 2¹ = 23021231999 is a prime.

It is a super-3 number, since 3×23021232001³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23021232041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11406936 + ... + 11408953.

It is an arithmetic number, because the mean of its divisors is an integer number (5761012225).

Almost surely, 2^23021232001 is an apocalyptic number.

It is an amenable number.

23021232001 is a deficient number, since it is larger than the sum of its proper divisors (22816899).

23021232001 is a wasteful number, since it uses less digits than its factorization.

23021232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22816898.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23021232001 its reverse (10023212032), we get a palindrome (33044444033).

The spelling of 23021232001 in words is "twenty-three billion, twenty-one million, two hundred thirty-two thousand, one".