115311413251 has 4 divisors (see below), whose sum is σ = 115312137192. Its totient is φ = 115310689312.

The previous prime is 115311413249. The next prime is 115311413263. The reversal of 115311413251 is 152314113511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 152314113511 = 7 ⋅21759159073.

It is a cyclic number.

It is not a de Polignac number, because 115311413251 - 2¹ = 115311413249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115311413281) 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, 7030 + ... + 480283.

It is an arithmetic number, because the mean of its divisors is an integer number (28828034298).

Almost surely, 2^115311413251 is an apocalyptic number.

115311413251 is a deficient number, since it is larger than the sum of its proper divisors (723941).

115311413251 is an equidigital number, since it uses as much as digits as its factorization.

115311413251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723940.

The product of its digits is 1800, while the sum is 28.

Adding to 115311413251 its reverse (152314113511), we get a palindrome (267625526762).

The spelling of 115311413251 in words is "one hundred fifteen billion, three hundred eleven million, four hundred thirteen thousand, two hundred fifty-one".