1342311026909 has 2 divisors, whose sum is σ = 1342311026910. Its totient is φ = 1342311026908.

The previous prime is 1342311026863. The next prime is 1342311026933. The reversal of 1342311026909 is 9096201132431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1342272859225 + 38167684 = 1158565^2 + 6178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342311026909 is a prime.

It is a super-2 number, since 2×1342311026909² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342311026209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671155513454 + 671155513455.

It is an arithmetic number, because the mean of its divisors is an integer number (671155513455).

Almost surely, 2^{1342311026909} is an apocalyptic number.

It is an amenable number.

1342311026909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342311026909 is an equidigital number, since it uses as much as digits as its factorization.

1342311026909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 1342311026909 in words is "one trillion, three hundred forty-two billion, three hundred eleven million, twenty-six thousand, nine hundred nine".