13203112111 has 8 divisors (see below), whose sum is σ = 15112104224. Its totient is φ = 11299828320.

The previous prime is 13203112093. The next prime is 13203112127. The reversal of 13203112111 is 11121130231.

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 13203112111 - 2⁷ = 13203111983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203113111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1422120 + ... + 1431373.

It is an arithmetic number, because the mean of its divisors is an integer number (1889013028).

Almost surely, 2^13203112111 is an apocalyptic number.

13203112111 is a deficient number, since it is larger than the sum of its proper divisors (1908992113).

13203112111 is an equidigital number, since it uses as much as digits as its factorization.

13203112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854161.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 13203112111 its reverse (11121130231), we get a palindrome (24324242342).

The spelling of 13203112111 in words is "thirteen billion, two hundred three million, one hundred twelve thousand, one hundred eleven".