201312020220 has 48 divisors (see below), whose sum is σ = 565012619808. Its totient is φ = 53555685120.

The previous prime is 201312020183. The next prime is 201312020243. The reversal of 201312020220 is 22020213102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201312020220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3959539 + ... + 4010058.

It is an arithmetic number, because the mean of its divisors is an integer number (11771096246).

Almost surely, 2^201312020220 is an apocalyptic number.

201312020220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201312020220 is an abundant number, since it is smaller than the sum of its proper divisors (363700599588).

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

201312020220 is a wasteful number, since it uses less digits than its factorization.

201312020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970030 (or 7970028 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 201312020220 its reverse (22020213102), we get a palindrome (223332233322).

The spelling of 201312020220 in words is "two hundred one billion, three hundred twelve million, twenty thousand, two hundred twenty".