20424421133300 has 72 divisors (see below), whose sum is σ = 44456147463000. Its totient is φ = 8144859340800.

The previous prime is 20424421133257. The next prime is 20424421133339. The reversal of 20424421133300 is 333112442402.

It can be written as a sum of positive squares in 12 ways, for example, as 17229572325904 + 3194848807396 = 4150852^2 + 1787414^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 736027826 + ... + 736055574.

Almost surely, 2^{20424421133300} is an apocalyptic number.

20424421133300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20424421133300 is an abundant number, since it is smaller than the sum of its proper divisors (24031726329700).

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

20424421133300 is a wasteful number, since it uses less digits than its factorization.

20424421133300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49941 (or 49934 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20424421133300 its reverse (333112442402), we get a palindrome (20757533575702).

The spelling of 20424421133300 in words is "twenty trillion, four hundred twenty-four billion, four hundred twenty-one million, one hundred thirty-three thousand, three hundred".