20021230302 has 16 divisors (see below), whose sum is σ = 41783437440. Its totient is φ = 6383580632.

The previous prime is 20021230241. The next prime is 20021230319. The reversal of 20021230302 is 20303212002.

It is a super-2 number, since 2×20021230302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72540552 + ... + 72540827.

It is an arithmetic number, because the mean of its divisors is an integer number (2611464840).

Almost surely, 2^20021230302 is an apocalyptic number.

20021230302 is an abundant number, since it is smaller than the sum of its proper divisors (21762207138).

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

20021230302 is a wasteful number, since it uses less digits than its factorization.

20021230302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145081407.

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

Adding to 20021230302 its reverse (20303212002), we get a palindrome (40324442304).

The spelling of 20021230302 in words is "twenty billion, twenty-one million, two hundred thirty thousand, three hundred two".