23400441421 has 12 divisors (see below), whose sum is σ = 27227039520. Its totient is φ = 20053013400.

The previous prime is 23400441413. The next prime is 23400441443. The reversal of 23400441421 is 12414400432.

It is not a de Polignac number, because 23400441421 - 2³ = 23400441413 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 (23400441221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176560 + ... + 279238.

It is an arithmetic number, because the mean of its divisors is an integer number (2268919960).

Almost surely, 2^23400441421 is an apocalyptic number.

It is an amenable number.

23400441421 is a deficient number, since it is larger than the sum of its proper divisors (3826598099).

23400441421 is a wasteful number, since it uses less digits than its factorization.

23400441421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107344 (or 107337 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 23400441421 its reverse (12414400432), we get a palindrome (35814841853).

The spelling of 23400441421 in words is "twenty-three billion, four hundred million, four hundred forty-one thousand, four hundred twenty-one".