13120550111 has 8 divisors (see below), whose sum is σ = 13977505920. Its totient is φ = 12280234392.

The previous prime is 13120550063. The next prime is 13120550117. The reversal of 13120550111 is 11105502131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13120550111 - 2²² = 13116355807 is a prime.

It is a super-2 number, since 2×13120550111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120550117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4158395 + ... + 4161548.

It is an arithmetic number, because the mean of its divisors is an integer number (1747188240).

Almost surely, 2^13120550111 is an apocalyptic number.

13120550111 is a deficient number, since it is larger than the sum of its proper divisors (856955809).

13120550111 is an equidigital number, since it uses as much as digits as its factorization.

13120550111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8320045.

The product of its (nonzero) digits is 150, while the sum is 20.

The spelling of 13120550111 in words is "thirteen billion, one hundred twenty million, five hundred fifty thousand, one hundred eleven".