23012256621 has 8 divisors (see below), whose sum is σ = 30725216704. Its totient is φ = 15320400480.

The previous prime is 23012256569. The next prime is 23012256653. The reversal of 23012256621 is 12665221032.

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

It is not a de Polignac number, because 23012256621 - 2¹⁰ = 23012255597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012256721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5273440 + ... + 5277801.

It is an arithmetic number, because the mean of its divisors is an integer number (3840652088).

Almost surely, 2^23012256621 is an apocalyptic number.

It is an amenable number.

23012256621 is a deficient number, since it is larger than the sum of its proper divisors (7712960083).

23012256621 is a wasteful number, since it uses less digits than its factorization.

23012256621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10551971.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 23012256621 its reverse (12665221032), we get a palindrome (35677477653).

The spelling of 23012256621 in words is "twenty-three billion, twelve million, two hundred fifty-six thousand, six hundred twenty-one".