23400321013 has 2 divisors, whose sum is σ = 23400321014. Its totient is φ = 23400321012.

The previous prime is 23400320989. The next prime is 23400321053. The reversal of 23400321013 is 31012300432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16140940209 + 7259380804 = 127047^2 + 85202^2 .

It is a cyclic number.

It is not a de Polignac number, because 23400321013 - 2²⁵ = 23366766581 is a prime.

It is a super-2 number, since 2×23400321013² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23400321053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700160506 + 11700160507.

It is an arithmetic number, because the mean of its divisors is an integer number (11700160507).

Almost surely, 2^23400321013 is an apocalyptic number.

It is an amenable number.

23400321013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400321013 is an equidigital number, since it uses as much as digits as its factorization.

23400321013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23400321013 its reverse (31012300432), we get a palindrome (54412621445).

The spelling of 23400321013 in words is "twenty-three billion, four hundred million, three hundred twenty-one thousand, thirteen".