12021020519 has 2 divisors, whose sum is σ = 12021020520. Its totient is φ = 12021020518.

The previous prime is 12021020507. The next prime is 12021020527. The reversal of 12021020519 is 91502012021.

12021020519 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021020519 is a prime.

It is a super-3 number, since 3×12021020519³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 12021020494 and 12021020503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021050519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010510259 + 6010510260.

It is an arithmetic number, because the mean of its divisors is an integer number (6010510260).

Almost surely, 2^12021020519 is an apocalyptic number.

12021020519 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021020519 is an equidigital number, since it uses as much as digits as its factorization.

12021020519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 23.

The spelling of 12021020519 in words is "twelve billion, twenty-one million, twenty thousand, five hundred nineteen".