30099999999991 has 2 divisors, whose sum is σ = 30099999999992. Its totient is φ = 30099999999990.

The previous prime is 30099999999961. The next prime is 30100000000003. The reversal of 30099999999991 is 19999999999003.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30099999999991 - 2²⁵ = 30099966445559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30099999999991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30099999999961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15049999999995 + 15049999999996.

It is an arithmetic number, because the mean of its divisors is an integer number (15049999999996).

Almost surely, 2^{30099999999991} is an apocalyptic number.

30099999999991 is a deficient number, since it is larger than the sum of its proper divisors (1).

30099999999991 is an equidigital number, since it uses as much as digits as its factorization.

30099999999991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10460353203, while the sum is 94.

The spelling of 30099999999991 in words is "thirty trillion, ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-one".