20213321300020 has 48 divisors (see below), whose sum is σ = 42850728708480. Its totient is φ = 8008634797184.

The previous prime is 20213321300009. The next prime is 20213321300023. The reversal of 20213321300020 is 2000312331202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213321300023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14589126 + ... + 15914434.

It is an arithmetic number, because the mean of its divisors is an integer number (892723514760).

Almost surely, 2^{20213321300020} is an apocalyptic number.

20213321300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20213321300020 is an abundant number, since it is smaller than the sum of its proper divisors (22637407408460).

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

20213321300020 is a wasteful number, since it uses less digits than its factorization.

20213321300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1332552 (or 1332550 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20213321300020 its reverse (2000312331202), we get a palindrome (22213633631222).

The spelling of 20213321300020 in words is "twenty trillion, two hundred thirteen billion, three hundred twenty-one million, three hundred thousand, twenty".