120975911 has 4 divisors (see below), whose sum is σ = 138258192. Its totient is φ = 103693632.

The previous prime is 120975889. The next prime is 120975917. The reversal of 120975911 is 119579021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 119579021 = 271 ⋅441251.

It is not a de Polignac number, because 120975911 - 2⁶ = 120975847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120975917) 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, 8641130 + ... + 8641143.

It is an arithmetic number, because the mean of its divisors is an integer number (34564548).

Almost surely, 2^120975911 is an apocalyptic number.

120975911 is a deficient number, since it is larger than the sum of its proper divisors (17282281).

120975911 is an equidigital number, since it uses as much as digits as its factorization.

120975911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17282280.

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 120975911 is about 10998.9049909525. The cubic root of 120975911 is about 494.5759194742.

The spelling of 120975911 in words is "one hundred twenty million, nine hundred seventy-five thousand, nine hundred eleven".