1121310310111 has 4 divisors (see below), whose sum is σ = 1136670725392. Its totient is φ = 1105949894832.

The previous prime is 1121310310079. The next prime is 1121310310123. The reversal of 1121310310111 is 1110130131211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121310310111 - 2⁵ = 1121310310079 is a prime.

It is a super-2 number, since 2×1121310310111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121310310511) 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, 7680207531 + ... + 7680207676.

It is an arithmetic number, because the mean of its divisors is an integer number (284167681348).

Almost surely, 2^{1121310310111} is an apocalyptic number.

1121310310111 is a deficient number, since it is larger than the sum of its proper divisors (15360415281).

1121310310111 is an equidigital number, since it uses as much as digits as its factorization.

1121310310111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15360415280.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 1121310310111 its reverse (1110130131211), we get a palindrome (2231440441322).

The spelling of 1121310310111 in words is "one trillion, one hundred twenty-one billion, three hundred ten million, three hundred ten thousand, one hundred eleven".