1311211331013 has 8 divisors (see below), whose sum is σ = 1752228236448. Its totient is φ = 872167656464.

The previous prime is 1311211330993. The next prime is 1311211331033. The reversal of 1311211331013 is 3101331121131.

It is an interprime number because it is at equal distance from previous prime (1311211330993) and next prime (1311211331033).

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 1311211331013 - 2⁸ = 1311211330757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311211331033) 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, 493306170 + ... + 493308827.

It is an arithmetic number, because the mean of its divisors is an integer number (219028529556).

Almost surely, 2^{1311211331013} is an apocalyptic number.

It is an amenable number.

1311211331013 is a deficient number, since it is larger than the sum of its proper divisors (441016905435).

1311211331013 is an equidigital number, since it uses as much as digits as its factorization.

1311211331013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986615443.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1311211331013 its reverse (3101331121131), we get a palindrome (4412542452144).

The spelling of 1311211331013 in words is "one trillion, three hundred eleven billion, two hundred eleven million, three hundred thirty-one thousand, thirteen".