1223010200989 has 2 divisors, whose sum is σ = 1223010200990. Its totient is φ = 1223010200988.

The previous prime is 1223010200987. The next prime is 1223010201137. The reversal of 1223010200989 is 9890020103221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1123510961764 + 99499239225 = 1059958^2 + 315435^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223010200989 - 2¹ = 1223010200987 is a prime.

Together with 1223010200987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223010200987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611505100494 + 611505100495.

It is an arithmetic number, because the mean of its divisors is an integer number (611505100495).

Almost surely, 2^{1223010200989} is an apocalyptic number.

It is an amenable number.

1223010200989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223010200989 is an equidigital number, since it uses as much as digits as its factorization.

1223010200989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 1223010200989 in words is "one trillion, two hundred twenty-three billion, ten million, two hundred thousand, nine hundred eighty-nine".