1431320413 has 2 divisors, whose sum is σ = 1431320414. Its totient is φ = 1431320412.

The previous prime is 1431320411. The next prime is 1431320419. The reversal of 1431320413 is 3140231341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1335025444 + 96294969 = 36538^2 + 9813^2 .

It is a cyclic number.

It is not a de Polignac number, because 1431320413 - 2¹ = 1431320411 is a prime.

Together with 1431320411, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431320411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715660206 + 715660207.

It is an arithmetic number, because the mean of its divisors is an integer number (715660207).

Almost surely, 2^1431320413 is an apocalyptic number.

It is an amenable number.

1431320413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431320413 is an equidigital number, since it uses as much as digits as its factorization.

1431320413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1431320413 is about 37832.7954690107. The cubic root of 1431320413 is about 1126.9698264039.

Adding to 1431320413 its reverse (3140231341), we get a palindrome (4571551754).

The spelling of 1431320413 in words is "one billion, four hundred thirty-one million, three hundred twenty thousand, four hundred thirteen".