115311731534 has 4 divisors (see below), whose sum is σ = 172967597304. Its totient is φ = 57655865766.

The previous prime is 115311731531. The next prime is 115311731551. The reversal of 115311731534 is 435137113511.

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

It is a junction number, because it is equal to n+sod(n) for n = 115311731494 and 115311731503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115311731531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28827932882 + ... + 28827932885.

It is an arithmetic number, because the mean of its divisors is an integer number (43241899326).

Almost surely, 2^115311731534 is an apocalyptic number.

115311731534 is a deficient number, since it is larger than the sum of its proper divisors (57655865770).

115311731534 is an equidigital number, since it uses as much as digits as its factorization.

115311731534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57655865769.

The product of its digits is 18900, while the sum is 35.

The spelling of 115311731534 in words is "one hundred fifteen billion, three hundred eleven million, seven hundred thirty-one thousand, five hundred thirty-four".