13111321014 has 32 divisors (see below), whose sum is σ = 31785022080. Its totient is φ = 3973127400.

The previous prime is 13111320991. The next prime is 13111321021. The reversal of 13111321014 is 41012311131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11035872 + ... + 11037059.

It is an arithmetic number, because the mean of its divisors is an integer number (993281940).

Almost surely, 2^13111321014 is an apocalyptic number.

13111321014 is an abundant number, since it is smaller than the sum of its proper divisors (18673701066).

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

13111321014 is a wasteful number, since it uses less digits than its factorization.

13111321014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22072953 (or 22072947 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 13111321014 its reverse (41012311131), we get a palindrome (54123632145).

The spelling of 13111321014 in words is "thirteen billion, one hundred eleven million, three hundred twenty-one thousand, fourteen".