1111312130113 has 4 divisors (see below), whose sum is σ = 1111588511188. Its totient is φ = 1111035749040.

The previous prime is 1111312130029. The next prime is 1111312130119. The reversal of 1111312130113 is 3110312131111.

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 389784202929 + 721527927184 = 624327^2 + 849428^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111312130113 - 2²¹ = 1111310032961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111312130119) 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, 138184506 + ... + 138192547.

It is an arithmetic number, because the mean of its divisors is an integer number (277897127797).

Almost surely, 2^{1111312130113} is an apocalyptic number.

It is an amenable number.

1111312130113 is a deficient number, since it is larger than the sum of its proper divisors (276381075).

1111312130113 is an equidigital number, since it uses as much as digits as its factorization.

1111312130113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276381074.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1111312130113 its reverse (3110312131111), we get a palindrome (4221624261224).

The spelling of 1111312130113 in words is "one trillion, one hundred eleven billion, three hundred twelve million, one hundred thirty thousand, one hundred thirteen".