131424434322521 has 16 divisors (see below), whose sum is σ = 141697674412800. Its totient is φ = 121492493792208.

The previous prime is 131424434322499. The next prime is 131424434322667. The reversal of 131424434322521 is 125223434424131.

It is a cyclic number.

It is not a de Polignac number, because 131424434322521 - 2⁶ = 131424434322457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131424434322121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78098891 + ... + 79763936.

It is an arithmetic number, because the mean of its divisors is an integer number (8856104650800).

Almost surely, 2^{131424434322521} is an apocalyptic number.

It is an amenable number.

131424434322521 is a deficient number, since it is larger than the sum of its proper divisors (10273240090279).

131424434322521 is a wasteful number, since it uses less digits than its factorization.

131424434322521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157863908.

The product of its digits is 552960, while the sum is 41.

Adding to 131424434322521 its reverse (125223434424131), we get a palindrome (256647868746652).

The spelling of 131424434322521 in words is "one hundred thirty-one trillion, four hundred twenty-four billion, four hundred thirty-four million, three hundred twenty-two thousand, five hundred twenty-one".