13120220111 has 2 divisors, whose sum is σ = 13120220112. Its totient is φ = 13120220110.

The previous prime is 13120220089. The next prime is 13120220153. The reversal of 13120220111 is 11102202131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13120220111 - 2¹⁰ = 13120219087 is a prime.

It is a super-2 number, since 2×13120220111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120222111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560110055 + 6560110056.

It is an arithmetic number, because the mean of its divisors is an integer number (6560110056).

Almost surely, 2^13120220111 is an apocalyptic number.

13120220111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120220111 is an equidigital number, since it uses as much as digits as its factorization.

13120220111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 13120220111 its reverse (11102202131), we get a palindrome (24222422242).

The spelling of 13120220111 in words is "thirteen billion, one hundred twenty million, two hundred twenty thousand, one hundred eleven".