100320131320 has 96 divisors (see below), whose sum is σ = 238951742400. Its totient is φ = 37896857856.

The previous prime is 100320131267. The next prime is 100320131321. The reversal of 100320131320 is 23131023001.

It is a junction number, because it is equal to n+sod(n) for n = 100320131294 and 100320131303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100320131321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1641634 + ... + 1701646.

It is an arithmetic number, because the mean of its divisors is an integer number (2489080650).

Almost surely, 2^100320131320 is an apocalyptic number.

100320131320 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 100320131320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119475871200).

100320131320 is an abundant number, since it is smaller than the sum of its proper divisors (138631611080).

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

100320131320 is a wasteful number, since it uses less digits than its factorization.

100320131320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60149 (or 60122 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 100320131320 its reverse (23131023001), we get a palindrome (123451154321).

The spelling of 100320131320 in words is "one hundred billion, three hundred twenty million, one hundred thirty-one thousand, three hundred twenty".