104431323389 has 2 divisors, whose sum is σ = 104431323390. Its totient is φ = 104431323388.

The previous prime is 104431323263. The next prime is 104431323401. The reversal of 104431323389 is 983323134401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86519516164 + 17911807225 = 294142^2 + 133835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104431323389 is a prime.

It is a super-3 number, since 3×104431323389³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104431323089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52215661694 + 52215661695.

It is an arithmetic number, because the mean of its divisors is an integer number (52215661695).

Almost surely, 2^104431323389 is an apocalyptic number.

It is an amenable number.

104431323389 is a deficient number, since it is larger than the sum of its proper divisors (1).

104431323389 is an equidigital number, since it uses as much as digits as its factorization.

104431323389 is an evil number, because the sum of its binary digits is even.

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

The spelling of 104431323389 in words is "one hundred four billion, four hundred thirty-one million, three hundred twenty-three thousand, three hundred eighty-nine".