131311103220220 has 96 divisors (see below), whose sum is σ = 343884353702400. Its totient is φ = 40917658602240.

The previous prime is 131311103220161. The next prime is 131311103220259. The reversal of 131311103220220 is 22022301113131.

It is a super-2 number, since 2×131311103220220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 131311103220191 and 131311103220200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4895295 + ... + 16928854.

It is an arithmetic number, because the mean of its divisors is an integer number (3582128684400).

Almost surely, 2^{131311103220220} is an apocalyptic number.

131311103220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131311103220220 is an abundant number, since it is smaller than the sum of its proper divisors (212573250482180).

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

131311103220220 is a wasteful number, since it uses less digits than its factorization.

131311103220220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21828083 (or 21828081 counting only the distinct ones).

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

Adding to 131311103220220 its reverse (22022301113131), we get a palindrome (153333404333351).

The spelling of 131311103220220 in words is "one hundred thirty-one trillion, three hundred eleven billion, one hundred three million, two hundred twenty thousand, two hundred twenty".