1312332231109 has 2 divisors, whose sum is σ = 1312332231110. Its totient is φ = 1312332231108.

The previous prime is 1312332231107. The next prime is 1312332231163. The reversal of 1312332231109 is 9011322332131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 934611363009 + 377720868100 = 966753^2 + 614590^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312332231109 - 2¹ = 1312332231107 is a prime.

Together with 1312332231107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312332231101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656166115554 + 656166115555.

It is an arithmetic number, because the mean of its divisors is an integer number (656166115555).

Almost surely, 2^{1312332231109} is an apocalyptic number.

It is an amenable number.

1312332231109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312332231109 is an equidigital number, since it uses as much as digits as its factorization.

1312332231109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 1312332231109 in words is "one trillion, three hundred twelve billion, three hundred thirty-two million, two hundred thirty-one thousand, one hundred nine".