11343121313 has 4 divisors (see below), whose sum is σ = 11367411120. Its totient is φ = 11318831508.

The previous prime is 11343121261. The next prime is 11343121343. The reversal of 11343121313 is 31312134311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11343121313 - 2²⁰ = 11342072737 is a prime.

It is a super-2 number, since 2×11343121313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11343121343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12144203 + ... + 12145136.

It is an arithmetic number, because the mean of its divisors is an integer number (2841852780).

Almost surely, 2^11343121313 is an apocalyptic number.

It is an amenable number.

11343121313 is a deficient number, since it is larger than the sum of its proper divisors (24289807).

11343121313 is an equidigital number, since it uses as much as digits as its factorization.

11343121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24289806.

The product of its digits is 648, while the sum is 23.

Adding to 11343121313 its reverse (31312134311), we get a palindrome (42655255624).

The spelling of 11343121313 in words is "eleven billion, three hundred forty-three million, one hundred twenty-one thousand, three hundred thirteen".