131221323330000 has 200 divisors, whose sum is σ = 423614245399488. Its totient is φ = 34991170176000.

The previous prime is 131221323329989. The next prime is 131221323330049. The reversal of 131221323330000 is 33323122131.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1227036532 + ... + 1227143468.

Almost surely, 2^{131221323330000} is an apocalyptic number.

131221323330000 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 131221323330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211807122699744).

131221323330000 is an abundant number, since it is smaller than the sum of its proper divisors (292392922069488).

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

131221323330000 is a wasteful number, since it uses less digits than its factorization.

131221323330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147871 (or 147850 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131221323330000 its reverse (33323122131), we get a palindrome (131254646452131).

The spelling of 131221323330000 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, three hundred twenty-three million, three hundred thirty thousand".