120950891 has 4 divisors (see below), whose sum is σ = 124219872. Its totient is φ = 117681912.

The previous prime is 120950839. The next prime is 120950917. The reversal of 120950891 is 198059021.

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 120950891 - 2¹⁸ = 120688747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120950831) 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, 1634435 + ... + 1634508.

It is an arithmetic number, because the mean of its divisors is an integer number (31054968).

Almost surely, 2^120950891 is an apocalyptic number.

120950891 is a deficient number, since it is larger than the sum of its proper divisors (3268981).

120950891 is an equidigital number, since it uses as much as digits as its factorization.

120950891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268980.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 120950891 is about 10997.7675461886. The cubic root of 120950891 is about 494.5418213837.

The spelling of 120950891 in words is "one hundred twenty million, nine hundred fifty thousand, eight hundred ninety-one".