23133331211 has 4 divisors (see below), whose sum is σ = 23134578000. Its totient is φ = 23132084424.

The previous prime is 23133331189. The next prime is 23133331229. The reversal of 23133331211 is 11213333132.

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 23133331211 - 2¹⁸ = 23133069067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23133331271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595136 + ... + 632813.

It is an arithmetic number, because the mean of its divisors is an integer number (5783644500).

Almost surely, 2^23133331211 is an apocalyptic number.

23133331211 is a deficient number, since it is larger than the sum of its proper divisors (1246789).

23133331211 is a wasteful number, since it uses less digits than its factorization.

23133331211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246788.

The product of its digits is 972, while the sum is 23.

Adding to 23133331211 its reverse (11213333132), we get a palindrome (34346664343).

The spelling of 23133331211 in words is "twenty-three billion, one hundred thirty-three million, three hundred thirty-one thousand, two hundred eleven".