211423431033 has 12 divisors (see below), whose sum is σ = 305736051348. Its totient is φ = 140788961280.

The previous prime is 211423431029. The next prime is 211423431101. The reversal of 211423431033 is 330134324112.

It is a happy number.

211423431033 is a `hidden beast` number, since 2 + 114 + 234 + 310 + 3 + 3 = 666.

211423431033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 57313796409 + 154109634624 = 239403^2 + 392568^2 .

It is not a de Polignac number, because 211423431033 - 2² = 211423431029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211423430988 and 211423431006.

It is not an unprimeable number, because it can be changed into a prime (211423439033) 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 11 ways as a sum of consecutive naturals, for example, 13324360 + ... + 13340217.

It is an arithmetic number, because the mean of its divisors is an integer number (25478004279).

Almost surely, 2^211423431033 is an apocalyptic number.

It is an amenable number.

211423431033 is a deficient number, since it is larger than the sum of its proper divisors (94312620315).

211423431033 is a wasteful number, since it uses less digits than its factorization.

211423431033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26665464 (or 26665461 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 211423431033 its reverse (330134324112), we get a palindrome (541557755145).

The spelling of 211423431033 in words is "two hundred eleven billion, four hundred twenty-three million, four hundred thirty-one thousand, thirty-three".