103718083951891 has 2 divisors, whose sum is σ = 103718083951892. Its totient is φ = 103718083951890.

The previous prime is 103718083951861. The next prime is 103718083952017. The reversal of 103718083951891 is 198159380817301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103718083951891 - 2²³ = 103718075563283 is a prime.

It is not a weakly prime, because it can be changed into another prime (103718083951831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51859041975945 + 51859041975946.

It is an arithmetic number, because the mean of its divisors is an integer number (51859041975946).

Almost surely, 2^{103718083951891} is an apocalyptic number.

103718083951891 is a deficient number, since it is larger than the sum of its proper divisors (1).

103718083951891 is an equidigital number, since it uses as much as digits as its factorization.

103718083951891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13063680, while the sum is 64.

The spelling of 103718083951891 in words is "one hundred three trillion, seven hundred eighteen billion, eighty-three million, nine hundred fifty-one thousand, eight hundred ninety-one".