1431342243 has 6 divisors (see below), whose sum is σ = 2067494364. Its totient is φ = 954228156.

The previous prime is 1431342229. The next prime is 1431342293. The reversal of 1431342243 is 3422431341.

1431342243 is a `hidden beast` number, since 1 + 431 + 3 + 4 + 224 + 3 = 666.

It is not a de Polignac number, because 1431342243 - 2¹⁸ = 1431080099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1431342293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79519005 + ... + 79519022.

It is an arithmetic number, because the mean of its divisors is an integer number (344582394).

Almost surely, 2^1431342243 is an apocalyptic number.

1431342243 is a deficient number, since it is larger than the sum of its proper divisors (636152121).

1431342243 is a wasteful number, since it uses less digits than its factorization.

1431342243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159038033 (or 159038030 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1431342243 is about 37833.0839742149. The cubic root of 1431342243 is about 1126.9755557585.

Adding to 1431342243 its reverse (3422431341), we get a palindrome (4853773584).

The spelling of 1431342243 in words is "one billion, four hundred thirty-one million, three hundred forty-two thousand, two hundred forty-three".