213122211103 has 2 divisors, whose sum is σ = 213122211104. Its totient is φ = 213122211102.

The previous prime is 213122211097. The next prime is 213122211119. The reversal of 213122211103 is 301112221312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213122211103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213122211193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561105551 + 106561105552.

It is an arithmetic number, because the mean of its divisors is an integer number (106561105552).

Almost surely, 2^213122211103 is an apocalyptic number.

213122211103 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122211103 is an equidigital number, since it uses as much as digits as its factorization.

213122211103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213122211103 its reverse (301112221312), we get a palindrome (514234432415).

The spelling of 213122211103 in words is "two hundred thirteen billion, one hundred twenty-two million, two hundred eleven thousand, one hundred three".