1002202023397 has 2 divisors, whose sum is σ = 1002202023398. Its totient is φ = 1002202023396.

The previous prime is 1002202023353. The next prime is 1002202023463. The reversal of 1002202023397 is 7933202022001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 552344753601 + 449857269796 = 743199^2 + 670714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002202023397 - 2¹⁹ = 1002201499109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002202053397) 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, 501101011698 + 501101011699.

It is an arithmetic number, because the mean of its divisors is an integer number (501101011699).

Almost surely, 2^{1002202023397} is an apocalyptic number.

It is an amenable number.

1002202023397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002202023397 is an equidigital number, since it uses as much as digits as its factorization.

1002202023397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 1002202023397 its reverse (7933202022001), we get a palindrome (8935404045398).

The spelling of 1002202023397 in words is "one trillion, two billion, two hundred two million, twenty-three thousand, three hundred ninety-seven".