213232111249 has 2 divisors, whose sum is σ = 213232111250. Its totient is φ = 213232111248.

The previous prime is 213232111247. The next prime is 213232111259. The reversal of 213232111249 is 942111232312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212982250000 + 249861249 = 461500^2 + 15807^2 .

It is a cyclic number.

It is not a de Polignac number, because 213232111249 - 2¹ = 213232111247 is a prime.

Together with 213232111247, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 213232111249.

It is not a weakly prime, because it can be changed into another prime (213232111247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616055624 + 106616055625.

It is an arithmetic number, because the mean of its divisors is an integer number (106616055625).

Almost surely, 2^213232111249 is an apocalyptic number.

It is an amenable number.

213232111249 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232111249 is an equidigital number, since it uses as much as digits as its factorization.

213232111249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The spelling of 213232111249 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred eleven thousand, two hundred forty-nine".