133431434344 has 16 divisors (see below), whose sum is σ = 269428858020. Its totient is φ = 61583738880.

The previous prime is 133431434341. The next prime is 133431434363. The reversal of 133431434344 is 443434134331.

It can be written as a sum of positive squares in 2 ways, for example, as 130709725444 + 2721708900 = 361538^2 + 52170^2 .

It is not an unprimeable number, because it can be changed into a prime (133431434341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641497177 + ... + 641497384.

Almost surely, 2^133431434344 is an apocalyptic number.

It is an amenable number.

133431434344 is an abundant number, since it is smaller than the sum of its proper divisors (135997423676).

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

133431434344 is a wasteful number, since it uses less digits than its factorization.

133431434344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282994580 (or 1282994576 counting only the distinct ones).

The product of its digits is 248832, while the sum is 37.

Adding to 133431434344 its reverse (443434134331), we get a palindrome (576865568675).

The spelling of 133431434344 in words is "one hundred thirty-three billion, four hundred thirty-one million, four hundred thirty-four thousand, three hundred forty-four".