1002022021313 has 2 divisors, whose sum is σ = 1002022021314. Its totient is φ = 1002022021312.

The previous prime is 1002022021291. The next prime is 1002022021321. The reversal of 1002022021313 is 3131202202001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1001934935089 + 87086224 = 1000967^2 + 9332^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002022021313 - 2⁶ = 1002022021249 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002022021291 and 1002022021300.

It is not a weakly prime, because it can be changed into another prime (1002022021613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501011010656 + 501011010657.

It is an arithmetic number, because the mean of its divisors is an integer number (501011010657).

Almost surely, 2^{1002022021313} is an apocalyptic number.

It is an amenable number.

1002022021313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002022021313 is an equidigital number, since it uses as much as digits as its factorization.

1002022021313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1002022021313 its reverse (3131202202001), we get a palindrome (4133224223314).

The spelling of 1002022021313 in words is "one trillion, two billion, twenty-two million, twenty-one thousand, three hundred thirteen".