1099583250421 has 2 divisors, whose sum is σ = 1099583250422. Its totient is φ = 1099583250420.

The previous prime is 1099583250401. The next prime is 1099583250439. The reversal of 1099583250421 is 1240523859901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1024318071396 + 75265179025 = 1012086^2 + 274345^2 .

It is an emirp because it is prime and its reverse (1240523859901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1099583250421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099583250401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549791625210 + 549791625211.

It is an arithmetic number, because the mean of its divisors is an integer number (549791625211).

Almost surely, 2^{1099583250421} is an apocalyptic number.

It is an amenable number.

1099583250421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099583250421 is an equidigital number, since it uses as much as digits as its factorization.

1099583250421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 1099583250421 in words is "one trillion, ninety-nine billion, five hundred eighty-three million, two hundred fifty thousand, four hundred twenty-one".