120857313 has 8 divisors (see below), whose sum is σ = 166341376. Its totient is φ = 77972400.

The previous prime is 120857291. The next prime is 120857339. The reversal of 120857313 is 313758021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120857313 - 2¹⁸ = 120595169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120857393) 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, 649678 + ... + 649863.

It is an arithmetic number, because the mean of its divisors is an integer number (20792672).

Almost surely, 2^120857313 is an apocalyptic number.

It is an amenable number.

120857313 is a deficient number, since it is larger than the sum of its proper divisors (45484063).

120857313 is a wasteful number, since it uses less digits than its factorization.

120857313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299575.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 120857313 is about 10993.5123140878. The cubic root of 120857313 is about 494.4142484648.

The spelling of 120857313 in words is "one hundred twenty million, eight hundred fifty-seven thousand, three hundred thirteen".