1003002110021 has 2 divisors, whose sum is σ = 1003002110022. Its totient is φ = 1003002110020.

The previous prime is 1003002109957. The next prime is 1003002110063. The reversal of 1003002110021 is 1200112003001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 587345968225 + 415656141796 = 766385^2 + 644714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003002110021 - 2⁶ = 1003002109957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1003002109984 and 1003002110011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003002110321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501501055010 + 501501055011.

It is an arithmetic number, because the mean of its divisors is an integer number (501501055011).

Almost surely, 2^{1003002110021} is an apocalyptic number.

It is an amenable number.

1003002110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003002110021 is an equidigital number, since it uses as much as digits as its factorization.

1003002110021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1003002110021 its reverse (1200112003001), we get a palindrome (2203114113022).

The spelling of 1003002110021 in words is "one trillion, three billion, two million, one hundred ten thousand, twenty-one".