120817343378 has 16 divisors (see below), whose sum is σ = 185462002944. Its totient is φ = 59001955200.

The previous prime is 120817343371. The next prime is 120817343417. The reversal of 120817343378 is 873343718021.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is not an unprimeable number, because it can be changed into a prime (120817343371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1273823 + ... + 1365378.

It is an arithmetic number, because the mean of its divisors is an integer number (11591375184).

Almost surely, 2^120817343378 is an apocalyptic number.

120817343378 is a deficient number, since it is larger than the sum of its proper divisors (64644659566).

120817343378 is a wasteful number, since it uses less digits than its factorization.

120817343378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639737.

The product of its (nonzero) digits is 677376, while the sum is 47.

The spelling of 120817343378 in words is "one hundred twenty billion, eight hundred seventeen million, three hundred forty-three thousand, three hundred seventy-eight".