202020233420 has 12 divisors (see below), whose sum is σ = 424242490224. Its totient is φ = 80808093360.

The previous prime is 202020233419. The next prime is 202020233423. The reversal of 202020233420 is 24332020202.

It is a super-2 number, since 2×202020233420² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 10101011671 = 202020233420 / (2 + 0 + 2 + 0 + 2 + 0 + 2 + 3 + 3 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 202020233392 and 202020233401.

It is not an unprimeable number, because it can be changed into a prime (202020233423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050505816 + ... + 5050505855.

It is an arithmetic number, because the mean of its divisors is an integer number (35353540852).

Almost surely, 2^202020233420 is an apocalyptic number.

202020233420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020233420 is an abundant number, since it is smaller than the sum of its proper divisors (222222256804).

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

202020233420 is a wasteful number, since it uses less digits than its factorization.

202020233420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101011680 (or 10101011678 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

Adding to 202020233420 its reverse (24332020202), we get a palindrome (226352253622).

The spelling of 202020233420 in words is "two hundred two billion, twenty million, two hundred thirty-three thousand, four hundred twenty".