13133220111 has 24 divisors (see below), whose sum is σ = 21408388560. Its totient is φ = 7685059200.

The previous prime is 13133220083. The next prime is 13133220143. The reversal of 13133220111 is 11102233131.

13133220111 is a `hidden beast` number, since 131 + 332 + 201 + 1 + 1 = 666.

It is not a de Polignac number, because 13133220111 - 2⁹ = 13133219599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13133220181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2284350 + ... + 2290091.

It is an arithmetic number, because the mean of its divisors is an integer number (892016190).

Almost surely, 2^13133220111 is an apocalyptic number.

13133220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13133220111 is a deficient number, since it is larger than the sum of its proper divisors (8275168449).

13133220111 is a wasteful number, since it uses less digits than its factorization.

13133220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574487 (or 4574484 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13133220111 its reverse (11102233131), we get a palindrome (24235453242).

The spelling of 13133220111 in words is "thirteen billion, one hundred thirty-three million, two hundred twenty thousand, one hundred eleven".