13111233320 has 16 divisors (see below), whose sum is σ = 29500275060. Its totient is φ = 5244493312.

The previous prime is 13111233319. The next prime is 13111233367. The reversal of 13111233320 is 2333211131.

13111233320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12643203364 + 468029956 = 112442^2 + 21634^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13111233292 and 13111233301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163890377 + ... + 163890456.

Almost surely, 2^13111233320 is an apocalyptic number.

13111233320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111233320 is an abundant number, since it is smaller than the sum of its proper divisors (16389041740).

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

13111233320 is a wasteful number, since it uses less digits than its factorization.

13111233320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327780844 (or 327780840 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13111233320 its reverse (2333211131), we get a palindrome (15444444451).

The spelling of 13111233320 in words is "thirteen billion, one hundred eleven million, two hundred thirty-three thousand, three hundred twenty".