11311343312 has 40 divisors (see below), whose sum is σ = 23239244736. Its totient is φ = 5315104256.

The previous prime is 11311343311. The next prime is 11311343317. The reversal of 11311343312 is 21334311311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311343311) 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, 155333 + ... + 216219.

Almost surely, 2^11311343312 is an apocalyptic number.

It is an amenable number.

11311343312 is an abundant number, since it is smaller than the sum of its proper divisors (11927901424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11311343312 is a wasteful number, since it uses less digits than its factorization.

11311343312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61595 (or 61589 counting only the distinct ones).

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

Adding to 11311343312 its reverse (21334311311), we get a palindrome (32645654623).

The spelling of 11311343312 in words is "eleven billion, three hundred eleven million, three hundred forty-three thousand, three hundred twelve".