113431511005 has 4 divisors (see below), whose sum is σ = 136117813212. Its totient is φ = 90745208800.

The previous prime is 113431510999. The next prime is 113431511029. The reversal of 113431511005 is 500115134311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53189735641 + 60241775364 = 230629^2 + 245442^2 .

It is not a de Polignac number, because 113431511005 - 2¹⁷ = 113431379933 is a prime.

It is a super-2 number, since 2×113431511005² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11343151096 + ... + 11343151105.

It is an arithmetic number, because the mean of its divisors is an integer number (34029453303).

Almost surely, 2^113431511005 is an apocalyptic number.

It is an amenable number.

113431511005 is a deficient number, since it is larger than the sum of its proper divisors (22686302207).

113431511005 is an equidigital number, since it uses as much as digits as its factorization.

113431511005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22686302206.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 113431511005 its reverse (500115134311), we get a palindrome (613546645316).

The spelling of 113431511005 in words is "one hundred thirteen billion, four hundred thirty-one million, five hundred eleven thousand, five".