123351163543 has 2 divisors, whose sum is σ = 123351163544. Its totient is φ = 123351163542.

The previous prime is 123351163517. The next prime is 123351163567. The reversal of 123351163543 is 345361153321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123351163543 - 2²⁵ = 123317609111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123351164543) 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, 61675581771 + 61675581772.

It is an arithmetic number, because the mean of its divisors is an integer number (61675581772).

Almost surely, 2^123351163543 is an apocalyptic number.

123351163543 is a deficient number, since it is larger than the sum of its proper divisors (1).

123351163543 is an equidigital number, since it uses as much as digits as its factorization.

123351163543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 37.

The spelling of 123351163543 in words is "one hundred twenty-three billion, three hundred fifty-one million, one hundred sixty-three thousand, five hundred forty-three".