1431321079 has 2 divisors, whose sum is σ = 1431321080. Its totient is φ = 1431321078.

The previous prime is 1431321041. The next prime is 1431321109. The reversal of 1431321079 is 9701231341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1431321079 - 2⁷ = 1431320951 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1431321079.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431321379) 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, 715660539 + 715660540.

It is an arithmetic number, because the mean of its divisors is an integer number (715660540).

Almost surely, 2^1431321079 is an apocalyptic number.

1431321079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431321079 is an equidigital number, since it uses as much as digits as its factorization.

1431321079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 1431321079 is about 37832.8042708970. The cubic root of 1431321079 is about 1126.9700011987.

The spelling of 1431321079 in words is "one billion, four hundred thirty-one million, three hundred twenty-one thousand, seventy-nine".