131321024434 has 16 divisors (see below), whose sum is σ = 209424180672. Its totient is φ = 61620692848.

The previous prime is 131321024399. The next prime is 131321024437. The reversal of 131321024434 is 434420123131.

It is a happy number.

It is a super-2 number, since 2×131321024434² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131321024437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26929684 + ... + 26934559.

It is an arithmetic number, because the mean of its divisors is an integer number (13089011292).

Almost surely, 2^131321024434 is an apocalyptic number.

131321024434 is a deficient number, since it is larger than the sum of its proper divisors (78103156238).

131321024434 is a wasteful number, since it uses less digits than its factorization.

131321024434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53864321.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131321024434 its reverse (434420123131), we get a palindrome (565741147565).

The spelling of 131321024434 in words is "one hundred thirty-one billion, three hundred twenty-one million, twenty-four thousand, four hundred thirty-four".