115605504031 has 2 divisors, whose sum is σ = 115605504032. Its totient is φ = 115605504030.

The previous prime is 115605503989. The next prime is 115605504037. The reversal of 115605504031 is 130405506511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115605504031 - 2²¹ = 115603406879 is a prime.

It is a super-2 number, since 2×115605504031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115605503984 and 115605504002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115605504037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57802752015 + 57802752016.

It is an arithmetic number, because the mean of its divisors is an integer number (57802752016).

Almost surely, 2^115605504031 is an apocalyptic number.

115605504031 is a deficient number, since it is larger than the sum of its proper divisors (1).

115605504031 is an equidigital number, since it uses as much as digits as its factorization.

115605504031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 31.

The spelling of 115605504031 in words is "one hundred fifteen billion, six hundred five million, five hundred four thousand, thirty-one".