1021200441263 has 2 divisors, whose sum is σ = 1021200441264. Its totient is φ = 1021200441262.

The previous prime is 1021200441211. The next prime is 1021200441337. The reversal of 1021200441263 is 3621440021201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021200441263 - 2²⁶ = 1021133332399 is a prime.

It is a super-3 number, since 3×1021200441263³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021200449263) 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, 510600220631 + 510600220632.

It is an arithmetic number, because the mean of its divisors is an integer number (510600220632).

Almost surely, 2^{1021200441263} is an apocalyptic number.

1021200441263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021200441263 is an equidigital number, since it uses as much as digits as its factorization.

1021200441263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1021200441263 its reverse (3621440021201), we get a palindrome (4642640462464).

The spelling of 1021200441263 in words is "one trillion, twenty-one billion, two hundred million, four hundred forty-one thousand, two hundred sixty-three".