1223123049983 has 2 divisors, whose sum is σ = 1223123049984. Its totient is φ = 1223123049982.

The previous prime is 1223123049959. The next prime is 1223123050031. The reversal of 1223123049983 is 3899403213221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223123049983 - 2²⁶ = 1223055941119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223123049383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611561524991 + 611561524992.

It is an arithmetic number, because the mean of its divisors is an integer number (611561524992).

Almost surely, 2^{1223123049983} is an apocalyptic number.

1223123049983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223123049983 is an equidigital number, since it uses as much as digits as its factorization.

1223123049983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 1223123049983 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-three million, forty-nine thousand, nine hundred eighty-three".