1431232313 has 8 divisors (see below), whose sum is σ = 1636203840. Its totient is φ = 1226388240.

The previous prime is 1431232303. The next prime is 1431232357. The reversal of 1431232313 is 3132321341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1431232313 - 2⁶ = 1431232249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1431232303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6443 + ... + 53888.

It is an arithmetic number, because the mean of its divisors is an integer number (204525480).

Almost surely, 2^1431232313 is an apocalyptic number.

It is an amenable number.

1431232313 is a deficient number, since it is larger than the sum of its proper divisors (204971527).

1431232313 is an equidigital number, since it uses as much as digits as its factorization.

1431232313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63727.

The product of its digits is 1296, while the sum is 23.

The square root of 1431232313 is about 37831.6311173600. The cubic root of 1431232313 is about 1126.9467036803.

Adding to 1431232313 its reverse (3132321341), we get a palindrome (4563553654).

The spelling of 1431232313 in words is "one billion, four hundred thirty-one million, two hundred thirty-two thousand, three hundred thirteen".