133333302331 has 4 divisors (see below), whose sum is σ = 136170181152. Its totient is φ = 130496423512.

The previous prime is 133333302269. The next prime is 133333302383. The reversal of 133333302331 is 133203333331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133333302331 - 2¹⁷ = 133333171259 is a prime.

It is a super-2 number, since 2×133333302331² (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 133333302331.

It is not an unprimeable number, because it can be changed into a prime (133333302031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1418439340 + ... + 1418439433.

It is an arithmetic number, because the mean of its divisors is an integer number (34042545288).

Almost surely, 2^133333302331 is an apocalyptic number.

133333302331 is a deficient number, since it is larger than the sum of its proper divisors (2836878821).

133333302331 is an equidigital number, since it uses as much as digits as its factorization.

133333302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2836878820.

The product of its (nonzero) digits is 13122, while the sum is 28.

Adding to 133333302331 its reverse (133203333331), we get a palindrome (266536635662).

The spelling of 133333302331 in words is "one hundred thirty-three billion, three hundred thirty-three million, three hundred two thousand, three hundred thirty-one".