115312111243 has 8 divisors (see below), whose sum is σ = 131793868800. Its totient is φ = 98832503400.

The previous prime is 115312111237. The next prime is 115312111261. The reversal of 115312111243 is 342111213511.

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

It is a cyclic number.

It is not a de Polignac number, because 115312111243 - 2²¹ = 115310014091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115312111543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420793 + ... + 638506.

It is an arithmetic number, because the mean of its divisors is an integer number (16474233600).

Almost surely, 2^115312111243 is an apocalyptic number.

115312111243 is a deficient number, since it is larger than the sum of its proper divisors (16481757557).

115312111243 is a wasteful number, since it uses less digits than its factorization.

115312111243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074857.

The product of its digits is 720, while the sum is 25.

Adding to 115312111243 its reverse (342111213511), we get a palindrome (457423324754).

The spelling of 115312111243 in words is "one hundred fifteen billion, three hundred twelve million, one hundred eleven thousand, two hundred forty-three".