120091214987 has 4 divisors (see below), whose sum is σ = 120219381576. Its totient is φ = 119963048400.

The previous prime is 120091214983. The next prime is 120091215007. The reversal of 120091214987 is 789412190021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120091214987 - 2² = 120091214983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120091214983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64081889 + ... + 64083762.

It is an arithmetic number, because the mean of its divisors is an integer number (30054845394).

Almost surely, 2^120091214987 is an apocalyptic number.

120091214987 is a deficient number, since it is larger than the sum of its proper divisors (128166589).

120091214987 is an equidigital number, since it uses as much as digits as its factorization.

120091214987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128166588.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 120091214987 in words is "one hundred twenty billion, ninety-one million, two hundred fourteen thousand, nine hundred eighty-seven".