123545263229 has 2 divisors, whose sum is σ = 123545263230. Its totient is φ = 123545263228.

The previous prime is 123545263211. The next prime is 123545263241. The reversal of 123545263229 is 922362545321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66371671129 + 57173592100 = 257627^2 + 239110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123545263229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123545263229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123545263279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61772631614 + 61772631615.

It is an arithmetic number, because the mean of its divisors is an integer number (61772631615).

Almost surely, 2^123545263229 is an apocalyptic number.

It is an amenable number.

123545263229 is a deficient number, since it is larger than the sum of its proper divisors (1).

123545263229 is an equidigital number, since it uses as much as digits as its factorization.

123545263229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 44.

The spelling of 123545263229 in words is "one hundred twenty-three billion, five hundred forty-five million, two hundred sixty-three thousand, two hundred twenty-nine".