23131024021 has 8 divisors (see below), whose sum is σ = 26437575744. Its totient is φ = 19825002240.

The previous prime is 23131023983. The next prime is 23131024027. The reversal of 23131024021 is 12042013132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23131024021 - 2¹³ = 23131015829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23131024021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23131024027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34075 + ... + 217768.

It is an arithmetic number, because the mean of its divisors is an integer number (3304696968).

Almost surely, 2^23131024021 is an apocalyptic number.

It is an amenable number.

23131024021 is a deficient number, since it is larger than the sum of its proper divisors (3306551723).

23131024021 is a wasteful number, since it uses less digits than its factorization.

23131024021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264971.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23131024021 its reverse (12042013132), we get a palindrome (35173037153).

The spelling of 23131024021 in words is "twenty-three billion, one hundred thirty-one million, twenty-four thousand, twenty-one".