120397918351 has 4 divisors (see below), whose sum is σ = 121070532600. Its totient is φ = 119725304104.

The previous prime is 120397918337. The next prime is 120397918367. The reversal of 120397918351 is 153819793021.

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 120397918351 - 2⁹ = 120397917839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120397918295 and 120397918304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120397918301) 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, 336306856 + ... + 336307213.

It is an arithmetic number, because the mean of its divisors is an integer number (30267633150).

Almost surely, 2^120397918351 is an apocalyptic number.

120397918351 is a deficient number, since it is larger than the sum of its proper divisors (672614249).

120397918351 is an equidigital number, since it uses as much as digits as its factorization.

120397918351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672614248.

The product of its (nonzero) digits is 408240, while the sum is 49.

The spelling of 120397918351 in words is "one hundred twenty billion, three hundred ninety-seven million, nine hundred eighteen thousand, three hundred fifty-one".