120115611 has 54 divisors (see below), whose sum is σ = 221941356. Its totient is φ = 62370000.

The previous prime is 120115577. The next prime is 120115621. The reversal of 120115611 is 116511021.

It is a happy number.

It is not a de Polignac number, because 120115611 - 2⁶ = 120115547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120115621) by changing a digit.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 52236 + ... + 54486.

Almost surely, 2^120115611 is an apocalyptic number.

120115611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120115611 is a deficient number, since it is larger than the sum of its proper divisors (101825745).

120115611 is a wasteful number, since it uses less digits than its factorization.

120115611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2293 (or 2272 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The square root of 120115611 is about 10959.7267757914. The cubic root of 120115611 is about 493.4007647154.

Adding to 120115611 its reverse (116511021), we get a palindrome (236626632).

The spelling of 120115611 in words is "one hundred twenty million, one hundred fifteen thousand, six hundred eleven".