1431241321 has 16 divisors (see below), whose sum is σ = 1515801600. Its totient is φ = 1349174848.

The previous prime is 1431241313. The next prime is 1431241333. The reversal of 1431241321 is 1231421341.

It is a cyclic number.

It is not a de Polignac number, because 1431241321 - 2³ = 1431241313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1431241292 and 1431241301.

It is not an unprimeable number, because it can be changed into a prime (1431241381) 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, 692736 + ... + 694798.

It is an arithmetic number, because the mean of its divisors is an integer number (94737600).

Almost surely, 2^1431241321 is an apocalyptic number.

It is an amenable number.

1431241321 is a deficient number, since it is larger than the sum of its proper divisors (84560279).

1431241321 is a wasteful number, since it uses less digits than its factorization.

1431241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648.

The product of its digits is 576, while the sum is 22.

The square root of 1431241321 is about 37831.7501709873. The cubic root of 1431241321 is about 1126.9490679633.

Adding to 1431241321 its reverse (1231421341), we get a palindrome (2662662662).

The spelling of 1431241321 in words is "one billion, four hundred thirty-one million, two hundred forty-one thousand, three hundred twenty-one".