203202423220 has 48 divisors (see below), whose sum is σ = 451163280960. Its totient is φ = 76663770624.

The previous prime is 203202423199. The next prime is 203202423233. The reversal of 203202423220 is 22324202302.

It is a junction number, because it is equal to n+sod(n) for n = 203202423191 and 203202423200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1091589 + ... + 1264108.

It is an arithmetic number, because the mean of its divisors is an integer number (9399235020).

Almost surely, 2^203202423220 is an apocalyptic number.

203202423220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203202423220 is an abundant number, since it is smaller than the sum of its proper divisors (247960857740).

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

203202423220 is a wasteful number, since it uses less digits than its factorization.

203202423220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2355952 (or 2355950 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

Adding to 203202423220 its reverse (22324202302), we get a palindrome (225526625522).

The spelling of 203202423220 in words is "two hundred three billion, two hundred two million, four hundred twenty-three thousand, two hundred twenty".