133313230331 has 8 divisors (see below), whose sum is σ = 135128983440. Its totient is φ = 131508253728.

The previous prime is 133313230327. The next prime is 133313230339. The reversal of 133313230331 is 133032313331.

It is a happy number.

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 133313230331 - 2² = 133313230327 is a prime.

It is a super-2 number, since 2×133313230331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133313230331.

It is not an unprimeable number, because it can be changed into a prime (133313230339) 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, 2669216 + ... + 2718701.

It is an arithmetic number, because the mean of its divisors is an integer number (16891122930).

Almost surely, 2^133313230331 is an apocalyptic number.

133313230331 is a deficient number, since it is larger than the sum of its proper divisors (1815753109).

133313230331 is a wasteful number, since it uses less digits than its factorization.

133313230331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388253.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 133313230331 its reverse (133032313331), we get a palindrome (266345543662).

The spelling of 133313230331 in words is "one hundred thirty-three billion, three hundred thirteen million, two hundred thirty thousand, three hundred thirty-one".