131130344434 has 8 divisors (see below), whose sum is σ = 196764857388. Its totient is φ = 65542058640.

The previous prime is 131130344393. The next prime is 131130344453. The reversal of 131130344434 is 434443031131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 115827912225 + 15302432209 = 340335^2 + 123703^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 131130344396 and 131130344405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11549697 + ... + 11561044.

Almost surely, 2^131130344434 is an apocalyptic number.

131130344434 is a deficient number, since it is larger than the sum of its proper divisors (65634512954).

131130344434 is a wasteful number, since it uses less digits than its factorization.

131130344434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23113580.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 131130344434 its reverse (434443031131), we get a palindrome (565573375565).

The spelling of 131130344434 in words is "one hundred thirty-one billion, one hundred thirty million, three hundred forty-four thousand, four hundred thirty-four".