131201421200320 has 112 divisors (see below), whose sum is σ = 313703378444160. Its totient is φ = 52265703931904.

The previous prime is 131201421200251. The next prime is 131201421200357. The reversal of 131201421200320 is 23002124102131.

It is a junction number, because it is equal to n+sod(n) for n = 131201421200291 and 131201421200300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228427737 + ... + 229001383.

Almost surely, 2^{131201421200320} is an apocalyptic number.

131201421200320 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 131201421200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156851689222080).

131201421200320 is an abundant number, since it is smaller than the sum of its proper divisors (182501957243840).

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

131201421200320 is a wasteful number, since it uses less digits than its factorization.

131201421200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576590 (or 576580 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 131201421200320 its reverse (23002124102131), we get a palindrome (154203545302451).

The spelling of 131201421200320 in words is "one hundred thirty-one trillion, two hundred one billion, four hundred twenty-one million, two hundred thousand, three hundred twenty".