131304124340 has 24 divisors (see below), whose sum is σ = 291958583112. Its totient is φ = 49432140800.

The previous prime is 131304124337. The next prime is 131304124351. The reversal of 131304124340 is 43421403131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30166131856 + 101137992484 = 173684^2 + 318022^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193093961 + ... + 193094640.

It is an arithmetic number, because the mean of its divisors is an integer number (12164940963).

Almost surely, 2^131304124340 is an apocalyptic number.

131304124340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131304124340 is an abundant number, since it is smaller than the sum of its proper divisors (160654458772).

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

131304124340 is a wasteful number, since it uses less digits than its factorization.

131304124340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386188627 (or 386188625 counting only the distinct ones).

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

Adding to 131304124340 its reverse (43421403131), we get a palindrome (174725527471).

The spelling of 131304124340 in words is "one hundred thirty-one billion, three hundred four million, one hundred twenty-four thousand, three hundred forty".