1021002102203 has 2 divisors, whose sum is σ = 1021002102204. Its totient is φ = 1021002102202.

The previous prime is 1021002102199. The next prime is 1021002102223. The reversal of 1021002102203 is 3022012001201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021002102203 - 2² = 1021002102199 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021002102223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510501051101 + 510501051102.

It is an arithmetic number, because the mean of its divisors is an integer number (510501051102).

Almost surely, 2^{1021002102203} is an apocalyptic number.

1021002102203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021002102203 is an equidigital number, since it uses as much as digits as its factorization.

1021002102203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 1021002102203 its reverse (3022012001201), we get a palindrome (4043014103404).

The spelling of 1021002102203 in words is "one trillion, twenty-one billion, two million, one hundred two thousand, two hundred three".