115120311 has 16 divisors (see below), whose sum is σ = 163772928. Its totient is φ = 71676800.

The previous prime is 115120309. The next prime is 115120321. The reversal of 115120311 is 113021511.

It is a cyclic number.

It is not a de Polignac number, because 115120311 - 2¹ = 115120309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115120321) 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, 1935 + ... + 15296.

It is an arithmetic number, because the mean of its divisors is an integer number (10235808).

Almost surely, 2^115120311 is an apocalyptic number.

115120311 is a deficient number, since it is larger than the sum of its proper divisors (48652617).

115120311 is a wasteful number, since it uses less digits than its factorization.

115120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17382.

The product of its (nonzero) digits is 30, while the sum is 15.

The square root of 115120311 is about 10729.4133576818. The cubic root of 115120311 is about 486.4639382576.

Adding to 115120311 its reverse (113021511), we get a palindrome (228141822).

The spelling of 115120311 in words is "one hundred fifteen million, one hundred twenty thousand, three hundred eleven".