131143112340 has 48 divisors (see below), whose sum is σ = 367216597440. Its totient is φ = 34969984000.

The previous prime is 131143112339. The next prime is 131143112371. The reversal of 131143112340 is 43211341131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131143112340.

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, 2390215 + ... + 2444465.

It is an arithmetic number, because the mean of its divisors is an integer number (7650345780).

Almost surely, 2^131143112340 is an apocalyptic number.

131143112340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131143112340 is an abundant number, since it is smaller than the sum of its proper divisors (236073485100).

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

131143112340 is a wasteful number, since it uses less digits than its factorization.

131143112340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94552 (or 94550 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131143112340 its reverse (43211341131), we get a palindrome (174354453471).

The spelling of 131143112340 in words is "one hundred thirty-one billion, one hundred forty-three million, one hundred twelve thousand, three hundred forty".