23400042321 has 16 divisors (see below), whose sum is σ = 31682490368. Its totient is φ = 15359058000.

The previous prime is 23400042301. The next prime is 23400042383. The reversal of 23400042321 is 12324000432.

It is not a de Polignac number, because 23400042321 - 2¹⁰ = 23400041297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23400042301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362316 + ... + 421986.

It is an arithmetic number, because the mean of its divisors is an integer number (1980155648).

Almost surely, 2^23400042321 is an apocalyptic number.

It is an amenable number.

23400042321 is a deficient number, since it is larger than the sum of its proper divisors (8282448047).

23400042321 is a wasteful number, since it uses less digits than its factorization.

23400042321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61692.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 23400042321 its reverse (12324000432), we get a palindrome (35724042753).

The spelling of 23400042321 in words is "twenty-three billion, four hundred million, forty-two thousand, three hundred twenty-one".