131320223100 has 324 divisors, whose sum is σ = 462081695712. Its totient is φ = 31156646400.

The previous prime is 131320223077. The next prime is 131320223117. The reversal of 131320223100 is 1322023131.

131320223100 is a `hidden beast` number, since 1 + 31 + 320 + 2 + 2 + 310 + 0 = 666.

It is a super-2 number, since 2×131320223100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 5105472 + ... + 5131128.

Almost surely, 2^131320223100 is an apocalyptic number.

131320223100 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 131320223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231040847856).

131320223100 is an abundant number, since it is smaller than the sum of its proper divisors (330761472612).

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

131320223100 is a wasteful number, since it uses less digits than its factorization.

131320223100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25746 (or 25725 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 131320223100 its reverse (1322023131), we get a palindrome (132642246231).

The spelling of 131320223100 in words is "one hundred thirty-one billion, three hundred twenty million, two hundred twenty-three thousand, one hundred".