131324020434 has 24 divisors (see below), whose sum is σ = 289199894412. Its totient is φ = 43057055520.

The previous prime is 131324020411. The next prime is 131324020439. The reversal of 131324020434 is 434020423131.

131324020434 is a `hidden beast` number, since 131 + 324 + 0 + 204 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 117878922225 + 13445098209 = 343335^2 + 115953^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131324020398 and 131324020407.

It is not an unprimeable number, because it can be changed into a prime (131324020439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59800369 + ... + 59802564.

Almost surely, 2^131324020434 is an apocalyptic number.

131324020434 is an abundant number, since it is smaller than the sum of its proper divisors (157875873978).

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

131324020434 is a wasteful number, since it uses less digits than its factorization.

131324020434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119603002 (or 119602999 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 131324020434 its reverse (434020423131), we get a palindrome (565344443565).

The spelling of 131324020434 in words is "one hundred thirty-one billion, three hundred twenty-four million, twenty thousand, four hundred thirty-four".