21010003005619 has 2 divisors, whose sum is σ = 21010003005620. Its totient is φ = 21010003005618.

The previous prime is 21010003005557. The next prime is 21010003005647. The reversal of 21010003005619 is 91650030001012.

It is an a-pointer prime, because the next prime (21010003005647) can be obtained adding 21010003005619 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21010003005619 - 2²⁷ = 21009868787891 is a prime.

It is a super-2 number, since 2×21010003005619² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21010003005419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10505001502809 + 10505001502810.

It is an arithmetic number, because the mean of its divisors is an integer number (10505001502810).

Almost surely, 2^{21010003005619} is an apocalyptic number.

21010003005619 is a deficient number, since it is larger than the sum of its proper divisors (1).

21010003005619 is an equidigital number, since it uses as much as digits as its factorization.

21010003005619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 21010003005619 in words is "twenty-one trillion, ten billion, three million, five thousand, six hundred nineteen".