120311099999 has 2 divisors, whose sum is σ = 120311100000. Its totient is φ = 120311099998.

The previous prime is 120311099981. The next prime is 120311100017. The reversal of 120311099999 is 999990113021.

It is a balanced prime because it is at equal distance from previous prime (120311099981) and next prime (120311100017).

It is an emirp because it is prime and its reverse (999990113021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120311099999 - 2²⁴ = 120294322783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120311099999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120311099929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60155549999 + 60155550000.

It is an arithmetic number, because the mean of its divisors is an integer number (60155550000).

Almost surely, 2^120311099999 is an apocalyptic number.

120311099999 is a deficient number, since it is larger than the sum of its proper divisors (1).

120311099999 is an equidigital number, since it uses as much as digits as its factorization.

120311099999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 354294, while the sum is 53.

The spelling of 120311099999 in words is "one hundred twenty billion, three hundred eleven million, ninety-nine thousand, nine hundred ninety-nine".