1311350310431 has 8 divisors (see below), whose sum is σ = 1521054518400. Its totient is φ = 1107238214808.

The previous prime is 1311350310383. The next prime is 1311350310461. The reversal of 1311350310431 is 1340130531131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1311350310431 - 2¹⁰ = 1311350309407 is a prime.

It is a super-2 number, since 2×1311350310431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311350310431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311350310461) 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, 1398027581 + ... + 1398028518.

It is an arithmetic number, because the mean of its divisors is an integer number (190131814800).

Almost surely, 2^{1311350310431} is an apocalyptic number.

1311350310431 is a deficient number, since it is larger than the sum of its proper divisors (209704207969).

1311350310431 is an equidigital number, since it uses as much as digits as its factorization.

1311350310431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796056173.

The product of its (nonzero) digits is 1620, while the sum is 26.

Adding to 1311350310431 its reverse (1340130531131), we get a palindrome (2651480841562).

The spelling of 1311350310431 in words is "one trillion, three hundred eleven billion, three hundred fifty million, three hundred ten thousand, four hundred thirty-one".