1431230431 has 2 divisors, whose sum is σ = 1431230432. Its totient is φ = 1431230430.

The previous prime is 1431230401. The next prime is 1431230491. The reversal of 1431230431 is 1340321341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1431230431 - 2⁵ = 1431230399 is a prime.

It is a super-2 number, since 2×1431230431² = 4096841093240891522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1431230401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 715615215 + 715615216.

It is an arithmetic number, because the mean of its divisors is an integer number (715615216).

Almost surely, 2^1431230431 is an apocalyptic number.

1431230431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1431230431 is an equidigital number, since it uses as much as digits as its factorization.

1431230431 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1431230431 is about 37831.6062439860. The cubic root of 1431230431 is about 1126.9462097203.

Adding to 1431230431 its reverse (1340321341), we get a palindrome (2771551772).

The spelling of 1431230431 in words is "one billion, four hundred thirty-one million, two hundred thirty thousand, four hundred thirty-one".