16203242111 has 4 divisors (see below), whose sum is σ = 18517990992. Its totient is φ = 13888493232.

The previous prime is 16203242087. The next prime is 16203242117. The reversal of 16203242111 is 11124230261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16203242111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16203242117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157374430 + ... + 1157374443.

It is an arithmetic number, because the mean of its divisors is an integer number (4629497748).

Almost surely, 2^16203242111 is an apocalyptic number.

16203242111 is a deficient number, since it is larger than the sum of its proper divisors (2314748881).

16203242111 is an equidigital number, since it uses as much as digits as its factorization.

16203242111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314748880.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 16203242111 its reverse (11124230261), we get a palindrome (27327472372).

The spelling of 16203242111 in words is "sixteen billion, two hundred three million, two hundred forty-two thousand, one hundred eleven".