1131321321349 has 2 divisors, whose sum is σ = 1131321321350. Its totient is φ = 1131321321348.

The previous prime is 1131321321287. The next prime is 1131321321359. The reversal of 1131321321349 is 9431231231311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1125046305124 + 6275016225 = 1060682^2 + 79215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131321321349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131321321359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565660660674 + 565660660675.

It is an arithmetic number, because the mean of its divisors is an integer number (565660660675).

Almost surely, 2^{1131321321349} is an apocalyptic number.

It is an amenable number.

1131321321349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131321321349 is an equidigital number, since it uses as much as digits as its factorization.

1131321321349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The spelling of 1131321321349 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-one million, three hundred twenty-one thousand, three hundred forty-nine".