206623412351 has 2 divisors, whose sum is σ = 206623412352. Its totient is φ = 206623412350.

The previous prime is 206623412327. The next prime is 206623412353. The reversal of 206623412351 is 153214326602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206623412351 - 2³⁰ = 205549670527 is a prime.

Together with 206623412353, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206623412353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103311706175 + 103311706176.

It is an arithmetic number, because the mean of its divisors is an integer number (103311706176).

Almost surely, 2^206623412351 is an apocalyptic number.

206623412351 is a deficient number, since it is larger than the sum of its proper divisors (1).

206623412351 is an equidigital number, since it uses as much as digits as its factorization.

206623412351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 35.

Adding to 206623412351 its reverse (153214326602), we get a palindrome (359837738953).

The spelling of 206623412351 in words is "two hundred six billion, six hundred twenty-three million, four hundred twelve thousand, three hundred fifty-one".