13113091068 has 96 divisors (see below), whose sum is σ = 38360770560. Its totient is φ = 3386927040.

The previous prime is 13113091021. The next prime is 13113091081. The reversal of 13113091068 is 86019031131.

It is a happy number.

It is a super-2 number, since 2×13113091068² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125755 + ... + 205037.

It is an arithmetic number, because the mean of its divisors is an integer number (399591360).

Almost surely, 2^13113091068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13113091068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19180385280).

13113091068 is an abundant number, since it is smaller than the sum of its proper divisors (25247679492).

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

13113091068 is a wasteful number, since it uses less digits than its factorization.

13113091068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79487 (or 79485 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The spelling of 13113091068 in words is "thirteen billion, one hundred thirteen million, ninety-one thousand, sixty-eight".