133333012243 has 4 divisors (see below), whose sum is σ = 133334171280. Its totient is φ = 133331853208.

The previous prime is 133333012229. The next prime is 133333012279. The reversal of 133333012243 is 342210333331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133333012243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133333012223) 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, 385255 + ... + 644272.

It is an arithmetic number, because the mean of its divisors is an integer number (33333542820).

Almost surely, 2^133333012243 is an apocalyptic number.

133333012243 is a deficient number, since it is larger than the sum of its proper divisors (1159037).

133333012243 is a wasteful number, since it uses less digits than its factorization.

133333012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159036.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 133333012243 its reverse (342210333331), we get a palindrome (475543345574).

The spelling of 133333012243 in words is "one hundred thirty-three billion, three hundred thirty-three million, twelve thousand, two hundred forty-three".