104020119991 has 2 divisors, whose sum is σ = 104020119992. Its totient is φ = 104020119990.

The previous prime is 104020119961. The next prime is 104020120049. The reversal of 104020119991 is 199911020401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 104020119991 - 2¹³ = 104020111799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104020119991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104020119961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52010059995 + 52010059996.

It is an arithmetic number, because the mean of its divisors is an integer number (52010059996).

Almost surely, 2^104020119991 is an apocalyptic number.

104020119991 is a deficient number, since it is larger than the sum of its proper divisors (1).

104020119991 is an equidigital number, since it uses as much as digits as its factorization.

104020119991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 104020119991 in words is "one hundred four billion, twenty million, one hundred nineteen thousand, nine hundred ninety-one".