213232312133 has 2 divisors, whose sum is σ = 213232312134. Its totient is φ = 213232312132.

The previous prime is 213232312099. The next prime is 213232312147. The reversal of 213232312133 is 331213232312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176146411204 + 37085900929 = 419698^2 + 192577^2 .

It is a cyclic number.

It is not a de Polignac number, because 213232312133 - 2¹⁶ = 213232246597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232312193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616156066 + 106616156067.

It is an arithmetic number, because the mean of its divisors is an integer number (106616156067).

Almost surely, 2^213232312133 is an apocalyptic number.

It is an amenable number.

213232312133 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232312133 is an equidigital number, since it uses as much as digits as its factorization.

213232312133 is an evil number, because the sum of its binary digits is even.

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

Adding to 213232312133 its reverse (331213232312), we get a palindrome (544445544445).

The spelling of 213232312133 in words is "two hundred thirteen billion, two hundred thirty-two million, three hundred twelve thousand, one hundred thirty-three".