120378841717 has 4 divisors (see below), whose sum is σ = 122027867020. Its totient is φ = 118729816416.

The previous prime is 120378841703. The next prime is 120378841769. The reversal of 120378841717 is 717148873021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100112756836 + 20266084881 = 316406^2 + 142359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120378841717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120378844717) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 824512542 + ... + 824512687.

It is an arithmetic number, because the mean of its divisors is an integer number (30506966755).

Almost surely, 2^120378841717 is an apocalyptic number.

It is an amenable number.

120378841717 is a deficient number, since it is larger than the sum of its proper divisors (1649025303).

120378841717 is an equidigital number, since it uses as much as digits as its factorization.

120378841717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649025302.

The product of its (nonzero) digits is 526848, while the sum is 49.

The spelling of 120378841717 in words is "one hundred twenty billion, three hundred seventy-eight million, eight hundred forty-one thousand, seven hundred seventeen".