131201022320 has 40 divisors (see below), whose sum is σ = 305177238240. Its totient is φ = 52457207040.

The previous prime is 131201022313. The next prime is 131201022331. The reversal of 131201022320 is 23220102131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179876 + ... + 542915.

It is an arithmetic number, because the mean of its divisors is an integer number (7629430956).

Almost surely, 2^131201022320 is an apocalyptic number.

131201022320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201022320 is an abundant number, since it is smaller than the sum of its proper divisors (173976215920).

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

131201022320 is a wasteful number, since it uses less digits than its factorization.

131201022320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725073 (or 725067 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 131201022320 its reverse (23220102131), we get a palindrome (154421124451).

The spelling of 131201022320 in words is "one hundred thirty-one billion, two hundred one million, twenty-two thousand, three hundred twenty".