1342991317 has 2 divisors, whose sum is σ = 1342991318. Its totient is φ = 1342991316.

The previous prime is 1342991267. The next prime is 1342991323. The reversal of 1342991317 is 7131992431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1342929316 + 62001 = 36646^2 + 249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342991317 - 2¹¹ = 1342989269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1342991317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342991417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671495658 + 671495659.

It is an arithmetic number, because the mean of its divisors is an integer number (671495659).

Almost surely, 2^1342991317 is an apocalyptic number.

It is an amenable number.

1342991317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342991317 is an equidigital number, since it uses as much as digits as its factorization.

1342991317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 40.

The square root of 1342991317 is about 36646.8459352234. The cubic root of 1342991317 is about 1103.2935221004.

The spelling of 1342991317 in words is "one billion, three hundred forty-two million, nine hundred ninety-one thousand, three hundred seventeen".