21003030119 has 2 divisors, whose sum is σ = 21003030120. Its totient is φ = 21003030118.

The previous prime is 21003030079. The next prime is 21003030133. The reversal of 21003030119 is 91103030012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21003030119 is a prime.

It is a super-2 number, since 2×21003030119² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21003030119.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21003030319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501515059 + 10501515060.

It is an arithmetic number, because the mean of its divisors is an integer number (10501515060).

Almost surely, 2^21003030119 is an apocalyptic number.

21003030119 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003030119 is an equidigital number, since it uses as much as digits as its factorization.

21003030119 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The spelling of 21003030119 in words is "twenty-one billion, three million, thirty thousand, one hundred nineteen".