212311132133 has 4 divisors (see below), whose sum is σ = 212320720908. Its totient is φ = 212301543360.

The previous prime is 212311132097. The next prime is 212311132153. The reversal of 212311132133 is 331231113212.

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 150139200484 + 62171931649 = 387478^2 + 249343^2 .

It is a cyclic number.

It is not a de Polignac number, because 212311132133 - 2¹² = 212311128037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212311132099 and 212311132108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212311132153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4761098 + ... + 4805483.

It is an arithmetic number, because the mean of its divisors is an integer number (53080180227).

Almost surely, 2^212311132133 is an apocalyptic number.

It is an amenable number.

212311132133 is a deficient number, since it is larger than the sum of its proper divisors (9588775).

212311132133 is an equidigital number, since it uses as much as digits as its factorization.

212311132133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9588774.

The product of its digits is 648, while the sum is 23.

Adding to 212311132133 its reverse (331231113212), we get a palindrome (543542245345).

The spelling of 212311132133 in words is "two hundred twelve billion, three hundred eleven million, one hundred thirty-two thousand, one hundred thirty-three".