1223463500249 has 2 divisors, whose sum is σ = 1223463500250. Its totient is φ = 1223463500248.

The previous prime is 1223463500209. The next prime is 1223463500261. The reversal of 1223463500249 is 9420053643221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1011094603024 + 212368897225 = 1005532^2 + 460835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223463500249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1223463500209) 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, 611731750124 + 611731750125.

It is an arithmetic number, because the mean of its divisors is an integer number (611731750125).

Almost surely, 2^{1223463500249} is an apocalyptic number.

It is an amenable number.

1223463500249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223463500249 is an equidigital number, since it uses as much as digits as its factorization.

1223463500249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 1223463500249 in words is "one trillion, two hundred twenty-three billion, four hundred sixty-three million, five hundred thousand, two hundred forty-nine".