1021202550413 has 2 divisors, whose sum is σ = 1021202550414. Its totient is φ = 1021202550412.

The previous prime is 1021202550391. The next prime is 1021202550427. The reversal of 1021202550413 is 3140552021201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 740560071364 + 280642479049 = 860558^2 + 529757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021202550413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021202550443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510601275206 + 510601275207.

It is an arithmetic number, because the mean of its divisors is an integer number (510601275207).

Almost surely, 2^{1021202550413} is an apocalyptic number.

It is an amenable number.

1021202550413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021202550413 is an equidigital number, since it uses as much as digits as its factorization.

1021202550413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 1021202550413 its reverse (3140552021201), we get a palindrome (4161754571614).

The spelling of 1021202550413 in words is "one trillion, twenty-one billion, two hundred two million, five hundred fifty thousand, four hundred thirteen".