1121240122311 has 4 divisors (see below), whose sum is σ = 1494986829752. Its totient is φ = 747493414872.

The previous prime is 1121240122267. The next prime is 1121240122349. The reversal of 1121240122311 is 1132210421211.

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

It is not a de Polignac number, because 1121240122311 - 2¹¹ = 1121240120263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121240122381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186873353716 + ... + 186873353721.

It is an arithmetic number, because the mean of its divisors is an integer number (373746707438).

Almost surely, 2^{1121240122311} is an apocalyptic number.

1121240122311 is a deficient number, since it is larger than the sum of its proper divisors (373746707441).

1121240122311 is an equidigital number, since it uses as much as digits as its factorization.

1121240122311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373746707440.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 1121240122311 its reverse (1132210421211), we get a palindrome (2253450543522).

The spelling of 1121240122311 in words is "one trillion, one hundred twenty-one billion, two hundred forty million, one hundred twenty-two thousand, three hundred eleven".