23040022421 has 24 divisors (see below), whose sum is σ = 26686406880. Its totient is φ = 19719204192.

The previous prime is 23040022367. The next prime is 23040022469. The reversal of 23040022421 is 12422004032.

It is not a de Polignac number, because 23040022421 - 2¹⁸ = 23039760277 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23040022393 and 23040022402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23040022121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524510 + ... + 566736.

It is an arithmetic number, because the mean of its divisors is an integer number (1111933620).

Almost surely, 2^23040022421 is an apocalyptic number.

It is an amenable number.

23040022421 is a deficient number, since it is larger than the sum of its proper divisors (3646384459).

23040022421 is a wasteful number, since it uses less digits than its factorization.

23040022421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42353 (or 42306 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 23040022421 its reverse (12422004032), we get a palindrome (35462026453).

The spelling of 23040022421 in words is "twenty-three billion, forty million, twenty-two thousand, four hundred twenty-one".