115123011 has 8 divisors (see below), whose sum is σ = 158790480. Its totient is φ = 74102112.

The previous prime is 115122991. The next prime is 115123037. The reversal of 115123011 is 110321511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115123011 - 2⁵ = 115122979 is a prime.

It is a super-2 number, since 2×115123011² = 26506615323412242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115123051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661540 + ... + 661713.

It is an arithmetic number, because the mean of its divisors is an integer number (19848810).

Almost surely, 2^115123011 is an apocalyptic number.

115123011 is a deficient number, since it is larger than the sum of its proper divisors (43667469).

115123011 is a wasteful number, since it uses less digits than its factorization.

115123011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323285.

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

The square root of 115123011 is about 10729.5391792938. The cubic root of 115123011 is about 486.4677413582.

Adding to 115123011 its reverse (110321511), we get a palindrome (225444522).

The spelling of 115123011 in words is "one hundred fifteen million, one hundred twenty-three thousand, eleven".