728106083111 has 4 divisors (see below), whose sum is σ = 794297545224. Its totient is φ = 661914621000.

The previous prime is 728106083059. The next prime is 728106083137. The reversal of 728106083111 is 111380601827.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111380601827 = 11 ⋅10125509257.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728106083111 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 (728106083141) 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, 33095731040 + ... + 33095731061.

It is an arithmetic number, because the mean of its divisors is an integer number (198574386306).

Almost surely, 2^728106083111 is an apocalyptic number.

728106083111 is a deficient number, since it is larger than the sum of its proper divisors (66191462113).

728106083111 is a wasteful number, since it uses less digits than its factorization.

728106083111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66191462112.

The product of its (nonzero) digits is 16128, while the sum is 38.

Adding to 728106083111 its reverse (111380601827), we get a palindrome (839486684938).

The spelling of 728106083111 in words is "seven hundred twenty-eight billion, one hundred six million, eighty-three thousand, one hundred eleven".