133331321221231 has 8 divisors (see below), whose sum is σ = 152504274147104. Its totient is φ = 114189773626080.

The previous prime is 133331321221223. The next prime is 133331321221237. The reversal of 133331321221231 is 132122123133331.

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

It is a cyclic number.

It is not a de Polignac number, because 133331321221231 - 2³ = 133331321221223 is a prime.

It is a super-2 number, since 2×133331321221231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133331321221193 and 133331321221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133331321221237) 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, 7851323580 + ... + 7851340561.

It is an arithmetic number, because the mean of its divisors is an integer number (19063034268388).

Almost surely, 2^{133331321221231} is an apocalyptic number.

133331321221231 is a deficient number, since it is larger than the sum of its proper divisors (19172952925873).

133331321221231 is a wasteful number, since it uses less digits than its factorization.

133331321221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15702665361.

The product of its digits is 11664, while the sum is 31.

Adding to 133331321221231 its reverse (132122123133331), we get a palindrome (265453444354562).

The spelling of 133331321221231 in words is "one hundred thirty-three trillion, three hundred thirty-one billion, three hundred twenty-one million, two hundred twenty-one thousand, two hundred thirty-one".