133031232321 has 16 divisors (see below), whose sum is σ = 191109811200. Its totient is φ = 81826542720.

The previous prime is 133031232281. The next prime is 133031232331. The reversal of 133031232321 is 123232130331.

It is not a de Polignac number, because 133031232321 - 2¹⁰ = 133031231297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133031232291 and 133031232300.

It is not an unprimeable number, because it can be changed into a prime (133031232331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 725596 + ... + 890253.

It is an arithmetic number, because the mean of its divisors is an integer number (11944363200).

Almost surely, 2^133031232321 is an apocalyptic number.

It is an amenable number.

133031232321 is a deficient number, since it is larger than the sum of its proper divisors (58078578879).

133031232321 is a wasteful number, since it uses less digits than its factorization.

133031232321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617976.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 133031232321 its reverse (123232130331), we get a palindrome (256263362652).

The spelling of 133031232321 in words is "one hundred thirty-three billion, thirty-one million, two hundred thirty-two thousand, three hundred twenty-one".