131030343220 has 24 divisors (see below), whose sum is σ = 314472824064. Its totient is φ = 44924689056.

The previous prime is 131030343203. The next prime is 131030343253. The reversal of 131030343220 is 22343030131.

It is a junction number, because it is equal to n+sod(n) for n = 131030343191 and 131030343200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467965372 + ... + 467965651.

It is an arithmetic number, because the mean of its divisors is an integer number (13103034336).

Almost surely, 2^131030343220 is an apocalyptic number.

131030343220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131030343220 is an abundant number, since it is smaller than the sum of its proper divisors (183442480844).

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

131030343220 is a wasteful number, since it uses less digits than its factorization.

131030343220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 935931039 (or 935931037 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 131030343220 its reverse (22343030131), we get a palindrome (153373373351).

The spelling of 131030343220 in words is "one hundred thirty-one billion, thirty million, three hundred forty-three thousand, two hundred twenty".