131223112300 has 108 divisors (see below), whose sum is σ = 333161488800. Its totient is φ = 44730430080.

The previous prime is 131223112291. The next prime is 131223112301. The reversal of 131223112300 is 3211322131.

It is a super-2 number, since 2×131223112300² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131223112301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 770301 + ... + 925099.

It is an arithmetic number, because the mean of its divisors is an integer number (3084828600).

Almost surely, 2^131223112300 is an apocalyptic number.

131223112300 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 131223112300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166580744400).

131223112300 is an abundant number, since it is smaller than the sum of its proper divisors (201938376500).

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

131223112300 is a wasteful number, since it uses less digits than its factorization.

131223112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155000 (or 154986 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131223112300 its reverse (3211322131), we get a palindrome (134434434431).

The spelling of 131223112300 in words is "one hundred thirty-one billion, two hundred twenty-three million, one hundred twelve thousand, three hundred".