23429492321 has 2 divisors, whose sum is σ = 23429492322. Its totient is φ = 23429492320.

The previous prime is 23429492299. The next prime is 23429492381. The reversal of 23429492321 is 12329492432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19421209600 + 4008282721 = 139360^2 + 63311^2 .

It is a cyclic number.

It is not a de Polignac number, because 23429492321 - 2³⁰ = 22355750497 is a prime.

It is a super-2 number, since 2×23429492321² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23429492381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11714746160 + 11714746161.

It is an arithmetic number, because the mean of its divisors is an integer number (11714746161).

Almost surely, 2^23429492321 is an apocalyptic number.

It is an amenable number.

23429492321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23429492321 is an equidigital number, since it uses as much as digits as its factorization.

23429492321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The spelling of 23429492321 in words is "twenty-three billion, four hundred twenty-nine million, four hundred ninety-two thousand, three hundred twenty-one".