23140121024421 has 64 divisors (see below), whose sum is σ = 34883396812800. Its totient is φ = 15157201707648.

The previous prime is 23140121024401. The next prime is 23140121024443. The reversal of 23140121024421 is 12442012104132.

23140121024421 is a `hidden beast` number, since 2 + 3 + 1 + 4 + 0 + 1 + 210 + 2 + 442 + 1 = 666.

It is not a de Polignac number, because 23140121024421 - 2⁶ = 23140121024357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23140121024401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1417978300 + ... + 1417994618.

It is an arithmetic number, because the mean of its divisors is an integer number (545053075200).

Almost surely, 2^{23140121024421} is an apocalyptic number.

It is an amenable number.

23140121024421 is a deficient number, since it is larger than the sum of its proper divisors (11743275788379).

23140121024421 is a wasteful number, since it uses less digits than its factorization.

23140121024421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18375 (or 18369 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 23140121024421 its reverse (12442012104132), we get a palindrome (35582133128553).

The spelling of 23140121024421 in words is "twenty-three trillion, one hundred forty billion, one hundred twenty-one million, twenty-four thousand, four hundred twenty-one".