20021303233020 has 96 divisors (see below), whose sum is σ = 56169880441920. Its totient is φ = 5328518307840.

The previous prime is 20021303232971. The next prime is 20021303233069. The reversal of 20021303233020 is 2033230312002.

It is an interprime number because it is at equal distance from previous prime (20021303232971) and next prime (20021303233069).

It is a super-4 number, since 4×20021303233020⁴ (a number of 54 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319017964 + ... + 319080716.

It is an arithmetic number, because the mean of its divisors is an integer number (585102921270).

Almost surely, 2^{20021303233020} is an apocalyptic number.

20021303233020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20021303233020 is an abundant number, since it is smaller than the sum of its proper divisors (36148577208900).

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

20021303233020 is a wasteful number, since it uses less digits than its factorization.

20021303233020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73135 (or 73133 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20021303233020 its reverse (2033230312002), we get a palindrome (22054533545022).

The spelling of 20021303233020 in words is "twenty trillion, twenty-one billion, three hundred three million, two hundred thirty-three thousand, twenty".