680206131 has 24 divisors (see below), whose sum is σ = 1077311664. Its totient is φ = 410141760.

The previous prime is 680206067. The next prime is 680206151. The reversal of 680206131 is 131602086.

680206131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 680206131 - 2⁶ = 680206067 is a prime.

It is a super-2 number, since 2×680206131² = 925360761299978322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 680206095 and 680206104.

It is not an unprimeable number, because it can be changed into a prime (680206151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2065 + ... + 36941.

It is an arithmetic number, because the mean of its divisors is an integer number (44887986).

Almost surely, 2^680206131 is an apocalyptic number.

680206131 is a deficient number, since it is larger than the sum of its proper divisors (397105533).

680206131 is a wasteful number, since it uses less digits than its factorization.

680206131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35091 (or 35088 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 680206131 is about 26080.7617028338. The cubic root of 680206131 is about 879.4547806408.

The spelling of 680206131 in words is "six hundred eighty million, two hundred six thousand, one hundred thirty-one".