1021070071603 has 2 divisors, whose sum is σ = 1021070071604. Its totient is φ = 1021070071602.

The previous prime is 1021070071583. The next prime is 1021070071621. The reversal of 1021070071603 is 3061700701201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021070071603 is a prime.

It is a super-2 number, since 2×1021070071603² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1021070074603) 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, 510535035801 + 510535035802.

It is an arithmetic number, because the mean of its divisors is an integer number (510535035802).

Almost surely, 2^{1021070071603} is an apocalyptic number.

1021070071603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021070071603 is an equidigital number, since it uses as much as digits as its factorization.

1021070071603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1764, while the sum is 28.

Adding to 1021070071603 its reverse (3061700701201), we get a palindrome (4082770772804).

The spelling of 1021070071603 in words is "one trillion, twenty-one billion, seventy million, seventy-one thousand, six hundred three".