1022020003 has 4 divisors (see below), whose sum is σ = 1023403720. Its totient is φ = 1020636288.

The previous prime is 1022019989. The next prime is 1022020009. The reversal of 1022020003 is 3000202201.

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 1022020003 - 2²¹ = 1019922851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1022020009) 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 in 3 ways as a sum of consecutive naturals, for example, 690750 + ... + 692227.

It is an arithmetic number, because the mean of its divisors is an integer number (255850930).

Almost surely, 2^1022020003 is an apocalyptic number.

1022020003 is a deficient number, since it is larger than the sum of its proper divisors (1383717).

1022020003 is an equidigital number, since it uses as much as digits as its factorization.

1022020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383716.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1022020003 is about 31969.0475773051. The cubic root of 1022020003 is about 1007.2867749421.

Adding to 1022020003 its reverse (3000202201), we get a palindrome (4022222204).

The spelling of 1022020003 in words is "one billion, twenty-two million, twenty thousand, three".