1021003213019 has 2 divisors, whose sum is σ = 1021003213020. Its totient is φ = 1021003213018.

The previous prime is 1021003213007. The next prime is 1021003213039. The reversal of 1021003213019 is 9103123001201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021003213019 - 2⁸ = 1021003212763 is a prime.

It is a super-2 number, since 2×1021003213019² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021003212985 and 1021003213003.

It is not a weakly prime, because it can be changed into another prime (1021003213039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510501606509 + 510501606510.

It is an arithmetic number, because the mean of its divisors is an integer number (510501606510).

Almost surely, 2^{1021003213019} is an apocalyptic number.

1021003213019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021003213019 is an equidigital number, since it uses as much as digits as its factorization.

1021003213019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 1021003213019 in words is "one trillion, twenty-one billion, three million, two hundred thirteen thousand, nineteen".