133220321291 has 8 divisors (see below), whose sum is σ = 133359905184. Its totient is φ = 133080796800.

The previous prime is 133220321261. The next prime is 133220321317. The reversal of 133220321291 is 192123022331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133220321291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133220321261) 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, 5504066 + ... + 5528216.

It is an arithmetic number, because the mean of its divisors is an integer number (16669988148).

Almost surely, 2^133220321291 is an apocalyptic number.

133220321291 is a deficient number, since it is larger than the sum of its proper divisors (139583893).

133220321291 is a wasteful number, since it uses less digits than its factorization.

133220321291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29701.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 133220321291 in words is "one hundred thirty-three billion, two hundred twenty million, three hundred twenty-one thousand, two hundred ninety-one".