131023234143240 has 256 divisors, whose sum is σ = 408465941184000. Its totient is φ = 33596234956800.

The previous prime is 131023234143239. The next prime is 131023234143247. The reversal of 131023234143240 is 42341432320131.

It is not an unprimeable number, because it can be changed into a prime (131023234143247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 502334460 + ... + 502595220.

It is an arithmetic number, because the mean of its divisors is an integer number (1595570082750).

Almost surely, 2^{131023234143240} is an apocalyptic number.

131023234143240 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 131023234143240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204232970592000).

131023234143240 is an abundant number, since it is smaller than the sum of its proper divisors (277442707040760).

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

131023234143240 is a wasteful number, since it uses less digits than its factorization.

131023234143240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262288 (or 262284 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 131023234143240 its reverse (42341432320131), we get a palindrome (173364666463371).

The spelling of 131023234143240 in words is "one hundred thirty-one trillion, twenty-three billion, two hundred thirty-four million, one hundred forty-three thousand, two hundred forty".