201131311203220 has 48 divisors (see below), whose sum is σ = 450696550328640. Its totient is φ = 75174096404736.

The previous prime is 201131311203211. The next prime is 201131311203241. The reversal of 201131311203220 is 22302113131102.

201131311203220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 201131311203191 and 201131311203200.

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, 3625266262 + ... + 3625321741.

It is an arithmetic number, because the mean of its divisors is an integer number (9389511465180).

Almost surely, 2^{201131311203220} is an apocalyptic number.

201131311203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201131311203220 is an abundant number, since it is smaller than the sum of its proper divisors (249565239125420).

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

201131311203220 is a wasteful number, since it uses less digits than its factorization.

201131311203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7250588104 (or 7250588102 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 201131311203220 its reverse (22302113131102), we get a palindrome (223433424334322).

The spelling of 201131311203220 in words is "two hundred one trillion, one hundred thirty-one billion, three hundred eleven million, two hundred three thousand, two hundred twenty".