115121121015 has 8 divisors (see below), whose sum is σ = 184193793648. Its totient is φ = 61397931200.

The previous prime is 115121120993. The next prime is 115121121023. The reversal of 115121121015 is 510121121511.

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

It is not a de Polignac number, because 115121121015 - 2¹³ = 115121112823 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 115121120982 and 115121121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3837370686 + ... + 3837370715.

It is an arithmetic number, because the mean of its divisors is an integer number (23024224206).

Almost surely, 2^115121121015 is an apocalyptic number.

115121121015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

115121121015 is a deficient number, since it is larger than the sum of its proper divisors (69072672633).

115121121015 is an equidigital number, since it uses as much as digits as its factorization.

115121121015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7674741409.

The product of its (nonzero) digits is 100, while the sum is 21.

Adding to 115121121015 its reverse (510121121511), we get a palindrome (625242242526).

The spelling of 115121121015 in words is "one hundred fifteen billion, one hundred twenty-one million, one hundred twenty-one thousand, fifteen".