1342347431 has 2 divisors, whose sum is σ = 1342347432. Its totient is φ = 1342347430.

The previous prime is 1342347403. The next prime is 1342347467. The reversal of 1342347431 is 1347432431.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1347432431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342347431 is a prime.

It is a super-2 number, since 2×1342347431² = 3603793251024599522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342347481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671173715 + 671173716.

It is an arithmetic number, because the mean of its divisors is an integer number (671173716).

Almost surely, 2^1342347431 is an apocalyptic number.

1342347431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342347431 is an equidigital number, since it uses as much as digits as its factorization.

1342347431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 32.

The square root of 1342347431 is about 36638.0598694854. The cubic root of 1342347431 is about 1103.1171722846.

Adding to 1342347431 its reverse (1347432431), we get a palindrome (2689779862).

The spelling of 1342347431 in words is "one billion, three hundred forty-two million, three hundred forty-seven thousand, four hundred thirty-one".