120435978089 has 16 divisors (see below), whose sum is σ = 137984973312. Its totient is φ = 102973102848.

The previous prime is 120435978077. The next prime is 120435978097. The reversal of 120435978089 is 980879534021.

It is not a de Polignac number, because 120435978089 - 2³² = 116141010793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120435978589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15530237 + ... + 15537989.

It is an arithmetic number, because the mean of its divisors is an integer number (8624060832).

Almost surely, 2^120435978089 is an apocalyptic number.

It is an amenable number.

120435978089 is a deficient number, since it is larger than the sum of its proper divisors (17548995223).

120435978089 is an equidigital number, since it uses as much as digits as its factorization.

120435978089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13016.

The product of its (nonzero) digits is 4354560, while the sum is 56.

The spelling of 120435978089 in words is "one hundred twenty billion, four hundred thirty-five million, nine hundred seventy-eight thousand, eighty-nine".