1121112113113 has 4 divisors (see below), whose sum is σ = 1122711417828. Its totient is φ = 1119512808400.

The previous prime is 1121112113087. The next prime is 1121112113119. The reversal of 1121112113113 is 3113112111211.

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 895137377689 + 225974735424 = 946117^2 + 475368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121112113113 is a prime.

It is a super-2 number, since 2×1121112113113² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121112113119) by changing a digit.

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, 799651306 + ... + 799652707.

It is an arithmetic number, because the mean of its divisors is an integer number (280677854457).

Almost surely, 2^{1121112113113} is an apocalyptic number.

It is an amenable number.

1121112113113 is a deficient number, since it is larger than the sum of its proper divisors (1599304715).

1121112113113 is an equidigital number, since it uses as much as digits as its factorization.

1121112113113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1599304714.

The product of its digits is 36, while the sum is 19.

Adding to 1121112113113 its reverse (3113112111211), we get a palindrome (4234224224324).

It can be divided in two parts, 11211 and 12113113, that added together give a square (12124324 = 3482²).

The spelling of 1121112113113 in words is "one trillion, one hundred twenty-one billion, one hundred twelve million, one hundred thirteen thousand, one hundred thirteen".