1200321101249 has 2 divisors, whose sum is σ = 1200321101250. Its totient is φ = 1200321101248.

The previous prime is 1200321101237. The next prime is 1200321101267. The reversal of 1200321101249 is 9421011230021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 710556273025 + 489764828224 = 842945^2 + 699832^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200321101249 - 2²⁸ = 1200052665793 is a prime.

It is a super-2 number, since 2×1200321101249² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1200321101269) 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, 600160550624 + 600160550625.

It is an arithmetic number, because the mean of its divisors is an integer number (600160550625).

Almost surely, 2^{1200321101249} is an apocalyptic number.

It is an amenable number.

1200321101249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200321101249 is an equidigital number, since it uses as much as digits as its factorization.

1200321101249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1200321101249 in words is "one trillion, two hundred billion, three hundred twenty-one million, one hundred one thousand, two hundred forty-nine".