1431430243 has 16 divisors (see below), whose sum is σ = 1539233280. Its totient is φ = 1326404736.

The previous prime is 1431430237. The next prime is 1431430267. The reversal of 1431430243 is 3420341341.

It is not a de Polignac number, because 1431430243 - 2⁹ = 1431429731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431430213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 311146 + ... + 315712.

It is an arithmetic number, because the mean of its divisors is an integer number (96202080).

Almost surely, 2^1431430243 is an apocalyptic number.

1431430243 is a deficient number, since it is larger than the sum of its proper divisors (107803037).

1431430243 is a wasteful number, since it uses less digits than its factorization.

1431430243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1431430243 is about 37834.2469596000. The cubic root of 1431430243 is about 1126.9986510540.

Adding to 1431430243 its reverse (3420341341), we get a palindrome (4851771584).

The spelling of 1431430243 in words is "one billion, four hundred thirty-one million, four hundred thirty thousand, two hundred forty-three".