213232111123 has 2 divisors, whose sum is σ = 213232111124. Its totient is φ = 213232111122.

The previous prime is 213232111117. The next prime is 213232111133. The reversal of 213232111123 is 321111232312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213232111123 is a prime.

It is a super-2 number, since 2×213232111123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213232111094 and 213232111103.

It is not a weakly prime, because it can be changed into another prime (213232111133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616055561 + 106616055562.

It is an arithmetic number, because the mean of its divisors is an integer number (106616055562).

Almost surely, 2^213232111123 is an apocalyptic number.

213232111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232111123 is an equidigital number, since it uses as much as digits as its factorization.

213232111123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

Adding to 213232111123 its reverse (321111232312), we get a palindrome (534343343435).

The spelling of 213232111123 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred eleven thousand, one hundred twenty-three".