133243342331 has 16 divisors (see below), whose sum is σ = 154538046720. Its totient is φ = 113677655520.

The previous prime is 133243342327. The next prime is 133243342333.

133243342331 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 133243342331 - 2² = 133243342327 is a prime.

It is a super-2 number, since 2×133243342331² (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 (133243342333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4955021 + ... + 4981838.

It is an arithmetic number, because the mean of its divisors is an integer number (9658627920).

Almost surely, 2^133243342331 is an apocalyptic number.

133243342331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

133243342331 is a deficient number, since it is larger than the sum of its proper divisors (21294704389).

133243342331 is a wasteful number, since it uses less digits than its factorization.

133243342331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9936946.

The product of its digits is 46656, while the sum is 32.

It can be divided in two parts, 133243 and 342331, that added together give a palindrome (475574).

The spelling of 133243342331 in words is "one hundred thirty-three billion, two hundred forty-three million, three hundred forty-two thousand, three hundred thirty-one".