20223431300020 has 96 divisors (see below), whose sum is σ = 47766000344832. Its totient is φ = 7136258899968.

The previous prime is 20223431299999. The next prime is 20223431300047. The reversal of 20223431300020 is 2000313432202.

It is a junction number, because it is equal to n+sod(n) for n = 20223431299964 and 20223431300000.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5428399 + ... + 8361481.

It is an arithmetic number, because the mean of its divisors is an integer number (497562503592).

Almost surely, 2^{20223431300020} is an apocalyptic number.

20223431300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20223431300020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23883000172416).

20223431300020 is an abundant number, since it is smaller than the sum of its proper divisors (27542569044812).

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

20223431300020 is a wasteful number, since it uses less digits than its factorization.

20223431300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2934281 (or 2934279 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20223431300020 its reverse (2000313432202), we get a palindrome (22223744732222).

The spelling of 20223431300020 in words is "twenty trillion, two hundred twenty-three billion, four hundred thirty-one million, three hundred thousand, twenty".