23401163321 has 4 divisors (see below), whose sum is σ = 23971923444. Its totient is φ = 22830403200.

The previous prime is 23401163311. The next prime is 23401163351. The reversal of 23401163321 is 12336110432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11210574400 + 12190588921 = 105880^2 + 110411^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23401163321 is a prime.

It is a super-2 number, since 2×23401163321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23401163311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285380000 + ... + 285380081.

It is an arithmetic number, because the mean of its divisors is an integer number (5992980861).

Almost surely, 2^23401163321 is an apocalyptic number.

It is an amenable number.

23401163321 is a deficient number, since it is larger than the sum of its proper divisors (570760123).

23401163321 is an equidigital number, since it uses as much as digits as its factorization.

23401163321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570760122.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 23401163321 its reverse (12336110432), we get a palindrome (35737273753).

The spelling of 23401163321 in words is "twenty-three billion, four hundred one million, one hundred sixty-three thousand, three hundred twenty-one".