131123413151540 has 48 divisors (see below), whose sum is σ = 276056771058432. Its totient is φ = 52316576309376.

The previous prime is 131123413151539. The next prime is 131123413151569. The reversal of 131123413151540 is 45151314321131.

It is a self number, because there is not a number n which added to its sum of digits gives 131123413151540.

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, 21137189 + ... + 26627571.

It is an arithmetic number, because the mean of its divisors is an integer number (5751182730384).

Almost surely, 2^{131123413151540} is an apocalyptic number.

131123413151540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131123413151540 is an abundant number, since it is smaller than the sum of its proper divisors (144933357906892).

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

131123413151540 is a wasteful number, since it uses less digits than its factorization.

131123413151540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493416 (or 5493414 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

Adding to 131123413151540 its reverse (45151314321131), we get a palindrome (176274727472671).

The spelling of 131123413151540 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, four hundred thirteen million, one hundred fifty-one thousand, five hundred forty".