23021000231 has 4 divisors (see below), whose sum is σ = 23067135000. Its totient is φ = 22974865464.

The previous prime is 23021000201. The next prime is 23021000237. The reversal of 23021000231 is 13200012032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23021000231 - 2¹⁴ = 23020983847 is a prime.

It is a super-2 number, since 2×23021000231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021000237) 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, 23066636 + ... + 23067633.

It is an arithmetic number, because the mean of its divisors is an integer number (5766783750).

Almost surely, 2^23021000231 is an apocalyptic number.

23021000231 is a deficient number, since it is larger than the sum of its proper divisors (46134769).

23021000231 is an equidigital number, since it uses as much as digits as its factorization.

23021000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46134768.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23021000231 its reverse (13200012032), we get a palindrome (36221012263).

The spelling of 23021000231 in words is "twenty-three billion, twenty-one million, two hundred thirty-one", and thus it is an aban number.