133445544331 has 8 divisors (see below), whose sum is σ = 145579622400. Its totient is φ = 121311910440.

The previous prime is 133445544329. The next prime is 133445544359.

133445544331 is nontrivially palindromic in base 10.

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 133445544331 - 2¹ = 133445544329 is a prime.

It is a super-2 number, since 2×133445544331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133445544361) 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, 1003990 + ... + 1129108.

It is an arithmetic number, because the mean of its divisors is an integer number (18197452800).

Almost surely, 2^133445544331 is an apocalyptic number.

133445544331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133445544331 is a deficient number, since it is larger than the sum of its proper divisors (12134078069).

133445544331 is a wasteful number, since it uses less digits than its factorization.

133445544331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222089.

The product of its digits is 518400, while the sum is 40.

It can be divided in two parts, 133445 and 544331, that added together give a palindrome (677776).

The spelling of 133445544331 in words is "one hundred thirty-three billion, four hundred forty-five million, five hundred forty-four thousand, three hundred thirty-one".