123265206343 has 2 divisors, whose sum is σ = 123265206344. Its totient is φ = 123265206342.

The previous prime is 123265206269. The next prime is 123265206367. The reversal of 123265206343 is 343602562321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123265206343 - 2³³ = 114675271751 is a prime.

It is a super-2 number, since 2×123265206343² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123265206943) 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 as a sum of consecutive naturals, namely, 61632603171 + 61632603172.

It is an arithmetic number, because the mean of its divisors is an integer number (61632603172).

Almost surely, 2^123265206343 is an apocalyptic number.

123265206343 is a deficient number, since it is larger than the sum of its proper divisors (1).

123265206343 is an equidigital number, since it uses as much as digits as its factorization.

123265206343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 37.

Adding to 123265206343 its reverse (343602562321), we get a palindrome (466867768664).

The spelling of 123265206343 in words is "one hundred twenty-three billion, two hundred sixty-five million, two hundred six thousand, three hundred forty-three".