1131222120331 has 2 divisors, whose sum is σ = 1131222120332. Its totient is φ = 1131222120330.

The previous prime is 1131222120269. The next prime is 1131222120341. The reversal of 1131222120331 is 1330212221311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131222120331 - 2¹¹ = 1131222118283 is a prime.

It is a super-2 number, since 2×1131222120331² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1131222120341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565611060165 + 565611060166.

It is an arithmetic number, because the mean of its divisors is an integer number (565611060166).

Almost surely, 2^{1131222120331} is an apocalyptic number.

1131222120331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131222120331 is an equidigital number, since it uses as much as digits as its factorization.

1131222120331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1131222120331 its reverse (1330212221311), we get a palindrome (2461434341642).

The spelling of 1131222120331 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-two million, one hundred twenty thousand, three hundred thirty-one".