115145633231 has 4 divisors (see below), whose sum is σ = 121918905792. Its totient is φ = 108372360672.

The previous prime is 115145633227. The next prime is 115145633237. The reversal of 115145633231 is 132336541511.

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

It is a cyclic number.

It is not a de Polignac number, because 115145633231 - 2² = 115145633227 is a prime.

It is a super-2 number, since 2×115145633231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115145633191 and 115145633200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115145633237) 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, 3386636255 + ... + 3386636288.

It is an arithmetic number, because the mean of its divisors is an integer number (30479726448).

Almost surely, 2^115145633231 is an apocalyptic number.

115145633231 is a deficient number, since it is larger than the sum of its proper divisors (6773272561).

115145633231 is an equidigital number, since it uses as much as digits as its factorization.

115145633231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6773272560.

The product of its digits is 32400, while the sum is 35.

The spelling of 115145633231 in words is "one hundred fifteen billion, one hundred forty-five million, six hundred thirty-three thousand, two hundred thirty-one".