1343302391 has 2 divisors, whose sum is σ = 1343302392. Its totient is φ = 1343302390.

The previous prime is 1343302357. The next prime is 1343302421. The reversal of 1343302391 is 1932033431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1343302391 - 2³⁰ = 269560567 is a prime.

It is a super-2 number, since 2×1343302391² = 3608922627332633762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1343302351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671651195 + 671651196.

It is an arithmetic number, because the mean of its divisors is an integer number (671651196).

Almost surely, 2^1343302391 is an apocalyptic number.

1343302391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343302391 is an equidigital number, since it uses as much as digits as its factorization.

1343302391 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 29.

The square root of 1343302391 is about 36651.0899019388. The cubic root of 1343302391 is about 1103.3786999740.

The spelling of 1343302391 in words is "one billion, three hundred forty-three million, three hundred two thousand, three hundred ninety-one".