131322200440 has 128 divisors (see below), whose sum is σ = 330310094400. Its totient is φ = 46696366080.

The previous prime is 131322200419. The next prime is 131322200453. The reversal of 131322200440 is 44002223131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4338960 + ... + 4369120.

Almost surely, 2^131322200440 is an apocalyptic number.

131322200440 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 131322200440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165155047200).

131322200440 is an abundant number, since it is smaller than the sum of its proper divisors (198987893960).

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

131322200440 is a wasteful number, since it uses less digits than its factorization.

131322200440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30545 (or 30541 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 131322200440 its reverse (44002223131), we get a palindrome (175324423571).

The spelling of 131322200440 in words is "one hundred thirty-one billion, three hundred twenty-two million, two hundred thousand, four hundred forty".