120980121 has 16 divisors (see below), whose sum is σ = 165984000. Its totient is φ = 78323328.

The previous prime is 120980107. The next prime is 120980129. The reversal of 120980121 is 121089021.

It is not a de Polignac number, because 120980121 - 2⁵ = 120980089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120980091 and 120980100.

It is not an unprimeable number, because it can be changed into a prime (120980129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114805 + ... + 115853.

It is an arithmetic number, because the mean of its divisors is an integer number (10374000).

Almost surely, 2^120980121 is an apocalyptic number.

It is an amenable number.

120980121 is a deficient number, since it is larger than the sum of its proper divisors (45003879).

120980121 is a wasteful number, since it uses less digits than its factorization.

120980121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 120980121 is about 10999.0963719753. The cubic root of 120980121 is about 494.5816565405.

Subtracting 120980121 from its reverse (121089021), we obtain a square (108900 = 330²).

The spelling of 120980121 in words is "one hundred twenty million, nine hundred eighty thousand, one hundred twenty-one".