1311324015331 has 8 divisors (see below), whose sum is σ = 1431296640000. Its totient is φ = 1191478282440.

The previous prime is 1311324015263. The next prime is 1311324015347. The reversal of 1311324015331 is 1335104231131.

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 1311324015331 - 2¹³ = 1311324007139 is a prime.

It is a super-2 number, since 2×1311324015331² (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 1311324015331.

It is not an unprimeable number, because it can be changed into a prime (1311324015031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31701331 + ... + 31742668.

It is an arithmetic number, because the mean of its divisors is an integer number (178912080000).

Almost surely, 2^{1311324015331} is an apocalyptic number.

1311324015331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1311324015331 is a deficient number, since it is larger than the sum of its proper divisors (119972624669).

1311324015331 is a wasteful number, since it uses less digits than its factorization.

1311324015331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63445889.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 1311324015331 its reverse (1335104231131), we get a palindrome (2646428246462).

The spelling of 1311324015331 in words is "one trillion, three hundred eleven billion, three hundred twenty-four million, fifteen thousand, three hundred thirty-one".