131322211313320 has 128 divisors (see below), whose sum is σ = 313914785184000. Its totient is φ = 49302149160960.

The previous prime is 131322211313311. The next prime is 131322211313333. The reversal of 131322211313320 is 23313112223131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 783831160 + ... + 783998680.

It is an arithmetic number, because the mean of its divisors is an integer number (2452459259250).

Almost surely, 2^{131322211313320} is an apocalyptic number.

131322211313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131322211313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156957392592000).

131322211313320 is an abundant number, since it is smaller than the sum of its proper divisors (182592573870680).

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

131322211313320 is a wasteful number, since it uses less digits than its factorization.

131322211313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177123 (or 177119 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 131322211313320 its reverse (23313112223131), we get a palindrome (154635323536451).

The spelling of 131322211313320 in words is "one hundred thirty-one trillion, three hundred twenty-two billion, two hundred eleven million, three hundred thirteen thousand, three hundred twenty".