120353891 has 4 divisors (see below), whose sum is σ = 137547312. Its totient is φ = 103160472.

The previous prime is 120353881. The next prime is 120353903. The reversal of 120353891 is 198353021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 198353021 = 2657 ⋅74653.

It is a cyclic number.

It is not a de Polignac number, because 120353891 - 2¹⁰ = 120352867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120353881) 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, 8596700 + ... + 8596713.

It is an arithmetic number, because the mean of its divisors is an integer number (34386828).

Almost surely, 2^120353891 is an apocalyptic number.

120353891 is a deficient number, since it is larger than the sum of its proper divisors (17193421).

120353891 is an equidigital number, since it uses as much as digits as its factorization.

120353891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17193420.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 120353891 is about 10970.5920988796. The cubic root of 120353891 is about 493.7268113662.

The spelling of 120353891 in words is "one hundred twenty million, three hundred fifty-three thousand, eight hundred ninety-one".