115811370251 has 2 divisors, whose sum is σ = 115811370252. Its totient is φ = 115811370250.

The previous prime is 115811370223. The next prime is 115811370281. The reversal of 115811370251 is 152073118511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 115811370251 - 2¹⁰ = 115811369227 is a prime.

It is not a weakly prime, because it can be changed into another prime (115811370281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57905685125 + 57905685126.

It is an arithmetic number, because the mean of its divisors is an integer number (57905685126).

Almost surely, 2^115811370251 is an apocalyptic number.

115811370251 is a deficient number, since it is larger than the sum of its proper divisors (1).

115811370251 is an equidigital number, since it uses as much as digits as its factorization.

115811370251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 35.

Adding to 115811370251 its reverse (152073118511), we get a palindrome (267884488762).

The spelling of 115811370251 in words is "one hundred fifteen billion, eight hundred eleven million, three hundred seventy thousand, two hundred fifty-one".