134431332313 has 8 divisors (see below), whose sum is σ = 137128409480. Its totient is φ = 131750167680.

The previous prime is 134431332281. The next prime is 134431332317. The reversal of 134431332313 is 313233134431.

It can be written as a sum of positive squares in 4 ways, for example, as 2427729984 + 132003602329 = 49272^2 + 363323^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 134431332313 - 2⁵ = 134431332281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134431332317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3961068 + ... + 3994861.

It is an arithmetic number, because the mean of its divisors is an integer number (17141051185).

Almost surely, 2^134431332313 is an apocalyptic number.

It is an amenable number.

134431332313 is a deficient number, since it is larger than the sum of its proper divisors (2697077167).

134431332313 is an equidigital number, since it uses as much as digits as its factorization.

134431332313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7956267.

The product of its digits is 23328, while the sum is 31.

Adding to 134431332313 its reverse (313233134431), we get a palindrome (447664466744).

The spelling of 134431332313 in words is "one hundred thirty-four billion, four hundred thirty-one million, three hundred thirty-two thousand, three hundred thirteen".