1223502355189 has 2 divisors, whose sum is σ = 1223502355190. Its totient is φ = 1223502355188.

The previous prime is 1223502355151. The next prime is 1223502355237. The reversal of 1223502355189 is 9815532053221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1001300422500 + 222201932689 = 1000650^2 + 471383^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223502355189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223502355129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611751177594 + 611751177595.

It is an arithmetic number, because the mean of its divisors is an integer number (611751177595).

Almost surely, 2^{1223502355189} is an apocalyptic number.

It is an amenable number.

1223502355189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223502355189 is an equidigital number, since it uses as much as digits as its factorization.

1223502355189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 1223502355189 in words is "one trillion, two hundred twenty-three billion, five hundred two million, three hundred fifty-five thousand, one hundred eighty-nine".