211232323133 has 4 divisors (see below), whose sum is σ = 227480963388. Its totient is φ = 194983682880.

The previous prime is 211232323079. The next prime is 211232323151. The reversal of 211232323133 is 331323232112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 99182794489 + 112049528644 = 314933^2 + 334738^2 .

It is a cyclic number.

It is not a de Polignac number, because 211232323133 - 2⁶ = 211232323069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211232223133) 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, 8124320108 + ... + 8124320133.

It is an arithmetic number, because the mean of its divisors is an integer number (56870240847).

Almost surely, 2^211232323133 is an apocalyptic number.

It is an amenable number.

211232323133 is a deficient number, since it is larger than the sum of its proper divisors (16248640255).

211232323133 is a wasteful number, since it uses less digits than its factorization.

211232323133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16248640254.

The product of its digits is 3888, while the sum is 26.

Adding to 211232323133 its reverse (331323232112), we get a palindrome (542555555245).

The spelling of 211232323133 in words is "two hundred eleven billion, two hundred thirty-two million, three hundred twenty-three thousand, one hundred thirty-three".