201323020220 has 48 divisors (see below), whose sum is σ = 491364679680. Its totient is φ = 67855116864.

The previous prime is 201323020207. The next prime is 201323020259. The reversal of 201323020220 is 22020323102.

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, 12178364 + ... + 12194883.

It is an arithmetic number, because the mean of its divisors is an integer number (10236764160).

Almost surely, 2^201323020220 is an apocalyptic number.

201323020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201323020220 is an abundant number, since it is smaller than the sum of its proper divisors (290041659460).

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

201323020220 is a wasteful number, since it uses less digits than its factorization.

201323020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24373322 (or 24373320 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 201323020220 its reverse (22020323102), we get a palindrome (223343343322).

The spelling of 201323020220 in words is "two hundred one billion, three hundred twenty-three million, twenty thousand, two hundred twenty".