1003201002061 has 2 divisors, whose sum is σ = 1003201002062. Its totient is φ = 1003201002060.

The previous prime is 1003201002059. The next prime is 1003201002071. The reversal of 1003201002061 is 1602001023001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532762768836 + 470438233225 = 729906^2 + 685885^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003201002061 - 2¹ = 1003201002059 is a prime.

Together with 1003201002059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003201002071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501600501030 + 501600501031.

It is an arithmetic number, because the mean of its divisors is an integer number (501600501031).

Almost surely, 2^{1003201002061} is an apocalyptic number.

It is an amenable number.

1003201002061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003201002061 is an equidigital number, since it uses as much as digits as its factorization.

1003201002061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1003201002061 its reverse (1602001023001), we get a palindrome (2605202025062).

The spelling of 1003201002061 in words is "one trillion, three billion, two hundred one million, two thousand, sixty-one".