115143011 has 4 divisors (see below), whose sum is σ = 115204512. Its totient is φ = 115081512.

The previous prime is 115142981. The next prime is 115143031. The reversal of 115143011 is 110341511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115143011 - 2¹⁰ = 115141987 is a prime.

It is a super-2 number, since 2×115143011² = 26515825964292242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115143031) 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, 27851 + ... + 31716.

It is an arithmetic number, because the mean of its divisors is an integer number (28801128).

Almost surely, 2^115143011 is an apocalyptic number.

115143011 is a deficient number, since it is larger than the sum of its proper divisors (61501).

115143011 is an equidigital number, since it uses as much as digits as its factorization.

115143011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61500.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 115143011 is about 10730.4711452946. The cubic root of 115143011 is about 486.4959106222.

Adding to 115143011 its reverse (110341511), we get a palindrome (225484522).

The spelling of 115143011 in words is "one hundred fifteen million, one hundred forty-three thousand, eleven".