131032334440 has 128 divisors (see below), whose sum is σ = 349805433600. Its totient is φ = 43221104640.

The previous prime is 131032334429. The next prime is 131032334449. The reversal of 131032334440 is 44433230131.

It is a super-2 number, since 2×131032334440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 131032334399 and 131032334408.

It is not an unprimeable number, because it can be changed into a prime (131032334449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2253007 + ... + 2310433.

It is an arithmetic number, because the mean of its divisors is an integer number (2732854950).

Almost surely, 2^131032334440 is an apocalyptic number.

131032334440 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 131032334440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174902716800).

131032334440 is an abundant number, since it is smaller than the sum of its proper divisors (218773099160).

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

131032334440 is a wasteful number, since it uses less digits than its factorization.

131032334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57755 (or 57751 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 131032334440 its reverse (44433230131), we get a palindrome (175465564571).

The spelling of 131032334440 in words is "one hundred thirty-one billion, thirty-two million, three hundred thirty-four thousand, four hundred forty".