213122231107 has 2 divisors, whose sum is σ = 213122231108. Its totient is φ = 213122231106.

The previous prime is 213122231083. The next prime is 213122231123. The reversal of 213122231107 is 701132221312.

213122231107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213122231107 is a prime.

It is not a weakly prime, because it can be changed into another prime (213122231167) 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 as a sum of consecutive naturals, namely, 106561115553 + 106561115554.

It is an arithmetic number, because the mean of its divisors is an integer number (106561115554).

Almost surely, 2^213122231107 is an apocalyptic number.

213122231107 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122231107 is an equidigital number, since it uses as much as digits as its factorization.

213122231107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 213122231107 its reverse (701132221312), we get a palindrome (914254452419).

The spelling of 213122231107 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred thirty-one thousand, one hundred seven".