20021302302 has 16 divisors (see below), whose sum is σ = 40076353152. Its totient is φ = 6668142680.

The previous prime is 20021302297. The next prime is 20021302309. The reversal of 20021302302 is 20320312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20021302309) 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 7 ways as a sum of consecutive naturals, for example, 1398474 + ... + 1412717.

It is an arithmetic number, because the mean of its divisors is an integer number (2504772072).

Almost surely, 2^20021302302 is an apocalyptic number.

20021302302 is an abundant number, since it is smaller than the sum of its proper divisors (20055050850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021302302 is a wasteful number, since it uses less digits than its factorization.

20021302302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812383.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20021302302 its reverse (20320312002), we get a palindrome (40341614304).

The spelling of 20021302302 in words is "twenty billion, twenty-one million, three hundred two thousand, three hundred two".