203420202024420 has 144 divisors (see below), whose sum is σ = 661959993764160. Its totient is φ = 52374856576896.

The previous prime is 203420202024383. The next prime is 203420202024421. The reversal of 203420202024420 is 24420202024302.

203420202024420 is a `hidden beast` number, since 2 + 0 + 34 + 2 + 0 + 2 + 0 + 202 + 4 + 420 = 666.

203420202024420 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (203420202024421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 721514382 + ... + 721796261.

It is an arithmetic number, because the mean of its divisors is an integer number (4596944401140).

Almost surely, 2^{203420202024420} is an apocalyptic number.

203420202024420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203420202024420 is an abundant number, since it is smaller than the sum of its proper divisors (458539791739740).

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

203420202024420 is a wasteful number, since it uses less digits than its factorization.

203420202024420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1443310696 (or 1443310682 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 27.

Adding to 203420202024420 its reverse (24420202024302), we get a palindrome (227840404048722).

The spelling of 203420202024420 in words is "two hundred three trillion, four hundred twenty billion, two hundred two million, twenty-four thousand, four hundred twenty".