123206220659 has 2 divisors, whose sum is σ = 123206220660. Its totient is φ = 123206220658.

The previous prime is 123206220583. The next prime is 123206220673. The reversal of 123206220659 is 956022602321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123206220659 - 2¹² = 123206216563 is a prime.

It is not a weakly prime, because it can be changed into another prime (123206220559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61603110329 + 61603110330.

It is an arithmetic number, because the mean of its divisors is an integer number (61603110330).

Almost surely, 2^123206220659 is an apocalyptic number.

123206220659 is a deficient number, since it is larger than the sum of its proper divisors (1).

123206220659 is an equidigital number, since it uses as much as digits as its factorization.

123206220659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The spelling of 123206220659 in words is "one hundred twenty-three billion, two hundred six million, two hundred twenty thousand, six hundred fifty-nine".