131403432112240 has 40 divisors (see below), whose sum is σ = 305514225637200. Its totient is φ = 52561158483456.

The previous prime is 131403432112229. The next prime is 131403432112247. The reversal of 131403432112240 is 42211234304131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403432112247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17169972 + ... + 23613868.

It is an arithmetic number, because the mean of its divisors is an integer number (7637855640930).

Almost surely, 2^{131403432112240} is an apocalyptic number.

131403432112240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403432112240 is an abundant number, since it is smaller than the sum of its proper divisors (174110793524960).

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

131403432112240 is a wasteful number, since it uses less digits than its factorization.

131403432112240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6698809 (or 6698803 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 131403432112240 its reverse (42211234304131), we get a palindrome (173614666416371).

The spelling of 131403432112240 in words is "one hundred thirty-one trillion, four hundred three billion, four hundred thirty-two million, one hundred twelve thousand, two hundred forty".