115400512361 has 4 divisors (see below), whose sum is σ = 122188777812. Its totient is φ = 108612246912.

The previous prime is 115400512349. The next prime is 115400512387. The reversal of 115400512361 is 163215004511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62950810000 + 52449702361 = 250900^2 + 229019^2 .

It is a cyclic number.

It is not a de Polignac number, because 115400512361 - 2²² = 115396318057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115400512561) 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 3 ways as a sum of consecutive naturals, for example, 3394132700 + ... + 3394132733.

It is an arithmetic number, because the mean of its divisors is an integer number (30547194453).

Almost surely, 2^115400512361 is an apocalyptic number.

It is an amenable number.

115400512361 is a deficient number, since it is larger than the sum of its proper divisors (6788265451).

115400512361 is an equidigital number, since it uses as much as digits as its factorization.

115400512361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788265450.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 115400512361 its reverse (163215004511), we get a palindrome (278615516872).

The spelling of 115400512361 in words is "one hundred fifteen billion, four hundred million, five hundred twelve thousand, three hundred sixty-one".