104113403981 has 2 divisors, whose sum is σ = 104113403982. Its totient is φ = 104113403980.

The previous prime is 104113403957. The next prime is 104113404071. The reversal of 104113403981 is 189304311401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83367322756 + 20746081225 = 288734^2 + 144035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104113403981 is a prime.

It is a super-2 number, since 2×104113403981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104113403921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52056701990 + 52056701991.

It is an arithmetic number, because the mean of its divisors is an integer number (52056701991).

Almost surely, 2^104113403981 is an apocalyptic number.

It is an amenable number.

104113403981 is a deficient number, since it is larger than the sum of its proper divisors (1).

104113403981 is an equidigital number, since it uses as much as digits as its factorization.

104113403981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The spelling of 104113403981 in words is "one hundred four billion, one hundred thirteen million, four hundred three thousand, nine hundred eighty-one".