1021010012003 has 2 divisors, whose sum is σ = 1021010012004. Its totient is φ = 1021010012002.

The previous prime is 1021010011949. The next prime is 1021010012039. The reversal of 1021010012003 is 3002100101201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021010012003 - 2¹² = 1021010007907 is a prime.

It is a super-3 number, since 3×1021010012003³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1021010012053) 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, 510505006001 + 510505006002.

It is an arithmetic number, because the mean of its divisors is an integer number (510505006002).

Almost surely, 2^{1021010012003} is an apocalyptic number.

1021010012003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021010012003 is an equidigital number, since it uses as much as digits as its factorization.

1021010012003 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1021010012003 its reverse (3002100101201), we get a palindrome (4023110113204).

The spelling of 1021010012003 in words is "one trillion, twenty-one billion, ten million, twelve thousand, three".