133431310206 has 48 divisors (see below), whose sum is σ = 301483728000. Its totient is φ = 44228599128.

The previous prime is 133431310163. The next prime is 133431310219. The reversal of 133431310206 is 602013134331.

133431310206 is a `hidden beast` number, since 1 + 3 + 343 + 1 + 310 + 2 + 0 + 6 = 666.

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

It is a self number, because there is not a number n which added to its sum of digits gives 133431310206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 679906 + ... + 853893.

It is an arithmetic number, because the mean of its divisors is an integer number (6280911000).

Almost surely, 2^133431310206 is an apocalyptic number.

133431310206 is an abundant number, since it is smaller than the sum of its proper divisors (168052417794).

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

133431310206 is a wasteful number, since it uses less digits than its factorization.

133431310206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533995 (or 1533983 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 133431310206 its reverse (602013134331), we get a palindrome (735444444537).

The spelling of 133431310206 in words is "one hundred thirty-three billion, four hundred thirty-one million, three hundred ten thousand, two hundred six".