680235001111 has 4 divisors (see below), whose sum is σ = 686970001224. Its totient is φ = 673500001000.

The previous prime is 680235001049. The next prime is 680235001129. The reversal of 680235001111 is 111100532086.

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

It is a cyclic number.

It is not a de Polignac number, because 680235001111 - 2¹¹ = 680234999063 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 680235001111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680235001181) 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 3 ways as a sum of consecutive naturals, for example, 3367499905 + ... + 3367500106.

It is an arithmetic number, because the mean of its divisors is an integer number (171742500306).

Almost surely, 2^680235001111 is an apocalyptic number.

680235001111 is a deficient number, since it is larger than the sum of its proper divisors (6735000113).

680235001111 is a wasteful number, since it uses less digits than its factorization.

680235001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6735000112.

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 680235001111 its reverse (111100532086), we get a palindrome (791335533197).

The spelling of 680235001111 in words is "six hundred eighty billion, two hundred thirty-five million, one thousand, one hundred eleven".