1121213211113 has 4 divisors (see below), whose sum is σ = 1137947736720. Its totient is φ = 1104478685508.

The previous prime is 1121213211067. The next prime is 1121213211187. The reversal of 1121213211113 is 3111123121211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1121213211113 - 2²⁰ = 1121212162537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121213216113) 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, 8367262703 + ... + 8367262836.

It is an arithmetic number, because the mean of its divisors is an integer number (284486934180).

Almost surely, 2^{1121213211113} is an apocalyptic number.

It is an amenable number.

1121213211113 is a deficient number, since it is larger than the sum of its proper divisors (16734525607).

1121213211113 is an equidigital number, since it uses as much as digits as its factorization.

1121213211113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16734525606.

The product of its digits is 72, while the sum is 20.

Adding to 1121213211113 its reverse (3111123121211), we get a palindrome (4232336332324).

The spelling of 1121213211113 in words is "one trillion, one hundred twenty-one billion, two hundred thirteen million, two hundred eleven thousand, one hundred thirteen".