131143033240 has 64 divisors (see below), whose sum is σ = 305405704800. Its totient is φ = 50621964288.

The previous prime is 131143033223. The next prime is 131143033249. The reversal of 131143033240 is 42330341131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131143033249) 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 15 ways as a sum of consecutive naturals, for example, 2276472 + ... + 2333368.

Almost surely, 2^131143033240 is an apocalyptic number.

131143033240 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 131143033240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152702852400).

131143033240 is an abundant number, since it is smaller than the sum of its proper divisors (174262671560).

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

131143033240 is a wasteful number, since it uses less digits than its factorization.

131143033240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58924 (or 58920 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 131143033240 its reverse (42330341131), we get a palindrome (173473374371).

The spelling of 131143033240 in words is "one hundred thirty-one billion, one hundred forty-three million, thirty-three thousand, two hundred forty".