115242211405251 has 24 divisors (see below), whose sum is σ = 190403571398144. Its totient is φ = 65796455902320.

The previous prime is 115242211405199. The next prime is 115242211405303. The reversal of 115242211405251 is 152504112242511.

115242211405251 is a `hidden beast` number, since 1 + 1 + 5 + 2 + 4 + 221 + 1 + 405 + 25 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (115242211405199) and next prime (115242211405303).

It is not a de Polignac number, because 115242211405251 - 2¹³ = 115242211397059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115242211405351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780985771 + ... + 781133316.

Almost surely, 2^{115242211405251} is an apocalyptic number.

115242211405251 is a deficient number, since it is larger than the sum of its proper divisors (75161359992893).

115242211405251 is a wasteful number, since it uses less digits than its factorization.

115242211405251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562120271 (or 1562120268 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 36.

Adding to 115242211405251 its reverse (152504112242511), we get a palindrome (267746323647762).

The spelling of 115242211405251 in words is "one hundred fifteen trillion, two hundred forty-two billion, two hundred eleven million, four hundred five thousand, two hundred fifty-one".