131423040012320 has 192 divisors, whose sum is σ = 357196544409600. Its totient is φ = 44761021578240.

The previous prime is 131423040012293. The next prime is 131423040012323. The reversal of 131423040012320 is 23210040324131.

It is a self number, because there is not a number n which added to its sum of digits gives 131423040012320.

It is not an unprimeable number, because it can be changed into a prime (131423040012323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 153381251 + ... + 154235709.

It is an arithmetic number, because the mean of its divisors is an integer number (1860398668800).

Almost surely, 2^{131423040012320} is an apocalyptic number.

131423040012320 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 131423040012320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178598272204800).

131423040012320 is an abundant number, since it is smaller than the sum of its proper divisors (225773504397280).

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

131423040012320 is a wasteful number, since it uses less digits than its factorization.

131423040012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855391 (or 855383 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 131423040012320 its reverse (23210040324131), we get a palindrome (154633080336451).

The spelling of 131423040012320 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, forty million, twelve thousand, three hundred twenty".