1431303423349 has 2 divisors, whose sum is σ = 1431303423350. Its totient is φ = 1431303423348.

The previous prime is 1431303423343. The next prime is 1431303423353. The reversal of 1431303423349 is 9433243031341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1385757461124 + 45545962225 = 1177182^2 + 213415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1431303423349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431303423343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715651711674 + 715651711675.

It is an arithmetic number, because the mean of its divisors is an integer number (715651711675).

Almost surely, 2^{1431303423349} is an apocalyptic number.

It is an amenable number.

1431303423349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431303423349 is an equidigital number, since it uses as much as digits as its factorization.

1431303423349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 40.

The spelling of 1431303423349 in words is "one trillion, four hundred thirty-one billion, three hundred three million, four hundred twenty-three thousand, three hundred forty-nine".