120211311 has 16 divisors (see below), whose sum is σ = 176588928. Its totient is φ = 72132000.

The previous prime is 120211283. The next prime is 120211313. The reversal of 120211311 is 113112021.

It is not a de Polignac number, because 120211311 - 2⁵ = 120211279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120211313) 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, 14701 + ... + 21366.

It is an arithmetic number, because the mean of its divisors is an integer number (11036808).

Almost surely, 2^120211311 is an apocalyptic number.

120211311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120211311 is a deficient number, since it is larger than the sum of its proper divisors (56377617).

120211311 is a wasteful number, since it uses less digits than its factorization.

120211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36182.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 120211311 is about 10964.0918912603. The cubic root of 120211311 is about 493.5317660570.

Adding to 120211311 its reverse (113112021), we get a palindrome (233323332).

The spelling of 120211311 in words is "one hundred twenty million, two hundred eleven thousand, three hundred eleven".