133431310044 has 30 divisors (see below), whose sum is σ = 348815802104. Its totient is φ = 44477103240.

The previous prime is 133431310007. The next prime is 133431310063. The reversal of 133431310044 is 440013134331.

133431310044 is a `hidden beast` number, since 1 + 3 + 343 + 1 + 310 + 0 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 205912192 + ... + 205912839.

Almost surely, 2^133431310044 is an apocalyptic number.

It is an amenable number.

133431310044 is an abundant number, since it is smaller than the sum of its proper divisors (215384492060).

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

133431310044 is a wasteful number, since it uses less digits than its factorization.

133431310044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411825047 (or 411825036 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 133431310044 its reverse (440013134331), we get a palindrome (573444444375).

The spelling of 133431310044 in words is "one hundred thirty-three billion, four hundred thirty-one million, three hundred ten thousand, forty-four".