115445120310131 has 4 divisors (see below), whose sum is σ = 117401817264600. Its totient is φ = 113488423355664.

The previous prime is 115445120310109. The next prime is 115445120310227. The reversal of 115445120310131 is 131013021544511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115445120310131 is a prime.

It is a super-2 number, since 2×115445120310131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115445120310431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 978348477146 + ... + 978348477263.

It is an arithmetic number, because the mean of its divisors is an integer number (29350454316150).

Almost surely, 2^{115445120310131} is an apocalyptic number.

115445120310131 is a deficient number, since it is larger than the sum of its proper divisors (1956696954469).

115445120310131 is an equidigital number, since it uses as much as digits as its factorization.

115445120310131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956696954468.

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 115445120310131 its reverse (131013021544511), we get a palindrome (246458141854642).

The spelling of 115445120310131 in words is "one hundred fifteen trillion, four hundred forty-five billion, one hundred twenty million, three hundred ten thousand, one hundred thirty-one".