1311332030311 has 4 divisors (see below), whose sum is σ = 1311704889112. Its totient is φ = 1310959171512.

The previous prime is 1311332030299. The next prime is 1311332030321. The reversal of 1311332030311 is 1130302331131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311332030311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311332030321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186424125 + ... + 186431158.

It is an arithmetic number, because the mean of its divisors is an integer number (327926222278).

Almost surely, 2^{1311332030311} is an apocalyptic number.

1311332030311 is a deficient number, since it is larger than the sum of its proper divisors (372858801).

1311332030311 is an equidigital number, since it uses as much as digits as its factorization.

1311332030311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372858800.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1311332030311 its reverse (1130302331131), we get a palindrome (2441634361442).

The spelling of 1311332030311 in words is "one trillion, three hundred eleven billion, three hundred thirty-two million, thirty thousand, three hundred eleven".