13111000312 has 64 divisors (see below), whose sum is σ = 26842464000. Its totient is φ = 5982729984.

The previous prime is 13111000303. The next prime is 13111000313. The reversal of 13111000312 is 21300011131.

It is a junction number, because it is equal to n+sod(n) for n = 13111000292 and 13111000301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111000313) 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, 463389 + ... + 490867.

It is an arithmetic number, because the mean of its divisors is an integer number (419413500).

Almost surely, 2^13111000312 is an apocalyptic number.

It is an amenable number.

13111000312 is an abundant number, since it is smaller than the sum of its proper divisors (13731463688).

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

13111000312 is a wasteful number, since it uses less digits than its factorization.

13111000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27620 (or 27616 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13111000312 its reverse (21300011131), we get a palindrome (34411011443).

The spelling of 13111000312 in words is "thirteen billion, one hundred eleven million, three hundred twelve", and thus it is an aban number.