131003232320 has 112 divisors (see below), whose sum is σ = 324866861568. Its totient is φ = 50261729280.

The previous prime is 131003232317. The next prime is 131003232329. The reversal of 131003232320 is 23232300131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 131003232292 and 131003232301.

It is not an unprimeable number, because it can be changed into a prime (131003232329) 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 15 ways as a sum of consecutive naturals, for example, 1062527 + ... + 1179393.

Almost surely, 2^131003232320 is an apocalyptic number.

131003232320 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 131003232320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162433430784).

131003232320 is an abundant number, since it is smaller than the sum of its proper divisors (193863629248).

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

131003232320 is a wasteful number, since it uses less digits than its factorization.

131003232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117028 (or 117018 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 131003232320 its reverse (23232300131), we get a palindrome (154235532451).

The spelling of 131003232320 in words is "one hundred thirty-one billion, three million, two hundred thirty-two thousand, three hundred twenty".