20302213003 has 4 divisors (see below), whose sum is σ = 20302573480. Its totient is φ = 20301852528.

The previous prime is 20302212989. The next prime is 20302213037. The reversal of 20302213003 is 30031220302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302213003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302213103) 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, 75450 + ... + 215167.

It is an arithmetic number, because the mean of its divisors is an integer number (5075643370).

Almost surely, 2^20302213003 is an apocalyptic number.

20302213003 is a deficient number, since it is larger than the sum of its proper divisors (360477).

20302213003 is an equidigital number, since it uses as much as digits as its factorization.

20302213003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360476.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20302213003 its reverse (30031220302), we get a palindrome (50333433305).

The spelling of 20302213003 in words is "twenty billion, three hundred two million, two hundred thirteen thousand, three".