202001020019 has 4 divisors (see below), whose sum is σ = 204846104880. Its totient is φ = 199155935160.

The previous prime is 202001019973. The next prime is 202001020033. The reversal of 202001020019 is 910020100202.

202001020019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 202001020019 - 2⁸ = 202001019763 is a prime.

It is a super-2 number, since 2×202001020019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202001019979 and 202001020006.

It is not an unprimeable number, because it can be changed into a prime (202001020619) 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 in 3 ways as a sum of consecutive naturals, for example, 1422542324 + ... + 1422542465.

It is an arithmetic number, because the mean of its divisors is an integer number (51211526220).

Almost surely, 2^202001020019 is an apocalyptic number.

202001020019 is a deficient number, since it is larger than the sum of its proper divisors (2845084861).

202001020019 is an equidigital number, since it uses as much as digits as its factorization.

202001020019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2845084860.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 202001020019 in words is "two hundred two billion, one million, twenty thousand, nineteen".