115243011 has 24 divisors (see below), whose sum is σ = 181804896. Its totient is φ = 69914880.

The previous prime is 115243003. The next prime is 115243031. The reversal of 115243011 is 110342511.

It is not a de Polignac number, because 115243011 - 2³ = 115243003 is a prime.

It is a super-2 number, since 2×115243011² = 26561903168692242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115243031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1371 + ... + 15243.

It is an arithmetic number, because the mean of its divisors is an integer number (7575204).

Almost surely, 2^115243011 is an apocalyptic number.

115243011 is a deficient number, since it is larger than the sum of its proper divisors (66561885).

115243011 is a wasteful number, since it uses less digits than its factorization.

115243011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13963 (or 13960 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 115243011 is about 10735.1297616750. The cubic root of 115243011 is about 486.6367080347.

Adding to 115243011 its reverse (110342511), we get a palindrome (225585522).

It can be divided in two parts, 11524 and 3011, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 115243011 in words is "one hundred fifteen million, two hundred forty-three thousand, eleven".