131405325042540 has 96 divisors (see below), whose sum is σ = 377960618637504. Its totient is φ = 34086999260160.

The previous prime is 131405325042533. The next prime is 131405325042559. The reversal of 131405325042540 is 45240523504131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3911610 + ... + 16676670.

It is an arithmetic number, because the mean of its divisors is an integer number (3937089777474).

Almost surely, 2^{131405325042540} is an apocalyptic number.

131405325042540 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 131405325042540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188980309318752).

131405325042540 is an abundant number, since it is smaller than the sum of its proper divisors (246555293594964).

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

131405325042540 is a wasteful number, since it uses less digits than its factorization.

131405325042540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12769747 (or 12769745 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 131405325042540 its reverse (45240523504131), we get a palindrome (176645848546671).

The spelling of 131405325042540 in words is "one hundred thirty-one trillion, four hundred five billion, three hundred twenty-five million, forty-two thousand, five hundred forty".