115231242215154 has 32 divisors (see below), whose sum is σ = 252873204986304. Its totient is φ = 34786790101440.

The previous prime is 115231242215129. The next prime is 115231242215171. The reversal of 115231242215154 is 451512242132511.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13937011132 + ... + 13937019399.

It is an arithmetic number, because the mean of its divisors is an integer number (7902287655822).

Almost surely, 2^{115231242215154} is an apocalyptic number.

115231242215154 is an abundant number, since it is smaller than the sum of its proper divisors (137641962771150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115231242215154 is a wasteful number, since it uses less digits than its factorization.

115231242215154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27874030602.

The product of its digits is 96000, while the sum is 39.

Adding to 115231242215154 its reverse (451512242132511), we get a palindrome (566743484347665).

The spelling of 115231242215154 in words is "one hundred fifteen trillion, two hundred thirty-one billion, two hundred forty-two million, two hundred fifteen thousand, one hundred fifty-four".