23420040321 has 8 divisors (see below), whose sum is σ = 31295052064. Its totient is φ = 15579194400.

The previous prime is 23420040299. The next prime is 23420040359. The reversal of 23420040321 is 12304002432.

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

It is not a de Polignac number, because 23420040321 - 2⁵ = 23420040289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23420040121) 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, 8539855 + ... + 8542596.

It is an arithmetic number, because the mean of its divisors is an integer number (3911881508).

Almost surely, 2^23420040321 is an apocalyptic number.

It is an amenable number.

23420040321 is a deficient number, since it is larger than the sum of its proper divisors (7875011743).

23420040321 is a wasteful number, since it uses less digits than its factorization.

23420040321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17082911.

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

Adding to 23420040321 its reverse (12304002432), we get a palindrome (35724042753).

The spelling of 23420040321 in words is "twenty-three billion, four hundred twenty million, forty thousand, three hundred twenty-one".