120346990187 has 4 divisors (see below), whose sum is σ = 120399753096. Its totient is φ = 120294227280.

The previous prime is 120346990157. The next prime is 120346990199. The reversal of 120346990187 is 781099643021.

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 120346990187 - 2¹⁸ = 120346728043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120346990117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26378033 + ... + 26382594.

It is an arithmetic number, because the mean of its divisors is an integer number (30099938274).

Almost surely, 2^120346990187 is an apocalyptic number.

120346990187 is a deficient number, since it is larger than the sum of its proper divisors (52762909).

120346990187 is an equidigital number, since it uses as much as digits as its factorization.

120346990187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52762908.

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 120346990187 in words is "one hundred twenty billion, three hundred forty-six million, nine hundred ninety thousand, one hundred eighty-seven".