115512542122 has 4 divisors (see below), whose sum is σ = 173268813186. Its totient is φ = 57756271060.

The previous prime is 115512542087. The next prime is 115512542179. The reversal of 115512542122 is 221245215511.

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

It can be written as a sum of positive squares in only one way, i.e., 102285472041 + 13227070081 = 319821^2 + 115009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28878135529 + ... + 28878135532.

Almost surely, 2^115512542122 is an apocalyptic number.

115512542122 is a deficient number, since it is larger than the sum of its proper divisors (57756271064).

115512542122 is an equidigital number, since it uses as much as digits as its factorization.

115512542122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57756271063.

The product of its digits is 8000, while the sum is 31.

Adding to 115512542122 its reverse (221245215511), we get a palindrome (336757757633).

The spelling of 115512542122 in words is "one hundred fifteen billion, five hundred twelve million, five hundred forty-two thousand, one hundred twenty-two".