1431312013 has 8 divisors (see below), whose sum is σ = 1438246656. Its totient is φ = 1424389200.

The previous prime is 1431311983. The next prime is 1431312049. The reversal of 1431312013 is 3102131341.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1431312013 is a prime.

It is a super-2 number, since 2×1431312013² = 4097308157116224338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431312053) 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 7 ways as a sum of consecutive naturals, for example, 321543 + ... + 325963.

It is an arithmetic number, because the mean of its divisors is an integer number (179780832).

Almost surely, 2^1431312013 is an apocalyptic number.

It is an amenable number.

1431312013 is a deficient number, since it is larger than the sum of its proper divisors (6934643).

1431312013 is a wasteful number, since it uses less digits than its factorization.

1431312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5915.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1431312013 is about 37832.6844540537. The cubic root of 1431312013 is about 1126.9676217811.

Adding to 1431312013 its reverse (3102131341), we get a palindrome (4533443354).

The spelling of 1431312013 in words is "one billion, four hundred thirty-one million, three hundred twelve thousand, thirteen".