686132096123 has 2 divisors, whose sum is σ = 686132096124. Its totient is φ = 686132096122.

The previous prime is 686132096119. The next prime is 686132096147. The reversal of 686132096123 is 321690231686.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 686132096123 - 2² = 686132096119 is a prime.

It is a super-2 number, since 2×686132096123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (686132092123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 343066048061 + 343066048062.

It is an arithmetic number, because the mean of its divisors is an integer number (343066048062).

Almost surely, 2^686132096123 is an apocalyptic number.

686132096123 is a deficient number, since it is larger than the sum of its proper divisors (1).

686132096123 is an equidigital number, since it uses as much as digits as its factorization.

686132096123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 686132096123 in words is "six hundred eighty-six billion, one hundred thirty-two million, ninety-six thousand, one hundred twenty-three".