115111644203 has 16 divisors (see below), whose sum is σ = 120259676160. Its totient is φ = 110071868256.

The previous prime is 115111644163. The next prime is 115111644227. The reversal of 115111644203 is 302446111511.

It is a cyclic number.

It is not a de Polignac number, because 115111644203 - 2²⁰ = 115110595627 is a prime.

It is a super-2 number, since 2×115111644203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115111644283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15371126 + ... + 15378612.

It is an arithmetic number, because the mean of its divisors is an integer number (7516229760).

Almost surely, 2^115111644203 is an apocalyptic number.

115111644203 is a deficient number, since it is larger than the sum of its proper divisors (5148031957).

115111644203 is an equidigital number, since it uses as much as digits as its factorization.

115111644203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14626.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 115111644203 its reverse (302446111511), we get a palindrome (417557755714).

The spelling of 115111644203 in words is "one hundred fifteen billion, one hundred eleven million, six hundred forty-four thousand, two hundred three".