1131222421311 has 4 divisors (see below), whose sum is σ = 1508296561752. Its totient is φ = 754148280872.

The previous prime is 1131222421297. The next prime is 1131222421313. The reversal of 1131222421311 is 1131242221311.

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 1131222421311 - 2⁷ = 1131222421183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131222421313) 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, 188537070216 + ... + 188537070221.

It is an arithmetic number, because the mean of its divisors is an integer number (377074140438).

Almost surely, 2^{1131222421311} is an apocalyptic number.

1131222421311 is a deficient number, since it is larger than the sum of its proper divisors (377074140441).

1131222421311 is an equidigital number, since it uses as much as digits as its factorization.

1131222421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377074140440.

The product of its digits is 576, while the sum is 24.

Adding to 1131222421311 its reverse (1131242221311), we get a palindrome (2262464642622).

The spelling of 1131222421311 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-two million, four hundred twenty-one thousand, three hundred eleven".