120000200110991 has 2 divisors, whose sum is σ = 120000200110992. Its totient is φ = 120000200110990.

The previous prime is 120000200110963. The next prime is 120000200111053. The reversal of 120000200110991 is 199011002000021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120000200110991 - 2¹⁸ = 120000199848847 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120000200110991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120000200110291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60000100055495 + 60000100055496.

It is an arithmetic number, because the mean of its divisors is an integer number (60000100055496).

Almost surely, 2^{120000200110991} is an apocalyptic number.

120000200110991 is a deficient number, since it is larger than the sum of its proper divisors (1).

120000200110991 is an equidigital number, since it uses as much as digits as its factorization.

120000200110991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 120000200110991 in words is "one hundred twenty trillion, two hundred million, one hundred ten thousand, nine hundred ninety-one".