1020202411321 has 2 divisors, whose sum is σ = 1020202411322. Its totient is φ = 1020202411320.

The previous prime is 1020202411303. The next prime is 1020202411351. The reversal of 1020202411321 is 1231142020201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1019314371321 + 888040000 = 1009611^2 + 29800^2 .

It is an emirp because it is prime and its reverse (1231142020201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020202411321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1020202411351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510101205660 + 510101205661.

It is an arithmetic number, because the mean of its divisors is an integer number (510101205661).

Almost surely, 2^{1020202411321} is an apocalyptic number.

It is an amenable number.

1020202411321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020202411321 is an equidigital number, since it uses as much as digits as its factorization.

1020202411321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1020202411321 its reverse (1231142020201), we get a palindrome (2251344431522).

The spelling of 1020202411321 in words is "one trillion, twenty billion, two hundred two million, four hundred eleven thousand, three hundred twenty-one".