1313213121311 has 16 divisors (see below), whose sum is σ = 1701328742400. Its totient is φ = 984340198368.

The previous prime is 1313213121307. The next prime is 1313213121313. The reversal of 1313213121311 is 1131213123131.

It is a cyclic number.

It is not a de Polignac number, because 1313213121311 - 2² = 1313213121307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313213121313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379759151 + ... + 379762608.

It is an arithmetic number, because the mean of its divisors is an integer number (106333046400).

Almost surely, 2^{1313213121311} is an apocalyptic number.

1313213121311 is a deficient number, since it is larger than the sum of its proper divisors (388115621089).

1313213121311 is a wasteful number, since it uses less digits than its factorization.

1313213121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759521798.

The product of its digits is 324, while the sum is 23.

Adding to 1313213121311 its reverse (1131213123131), we get a palindrome (2444426244442).

The spelling of 1313213121311 in words is "one trillion, three hundred thirteen billion, two hundred thirteen million, one hundred twenty-one thousand, three hundred eleven".