213102323123 has 2 divisors, whose sum is σ = 213102323124. Its totient is φ = 213102323122.

The previous prime is 213102323089. The next prime is 213102323129. The reversal of 213102323123 is 321323201312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213102323123 - 2¹⁰ = 213102322099 is a prime.

It is not a weakly prime, because it can be changed into another prime (213102323129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106551161561 + 106551161562.

It is an arithmetic number, because the mean of its divisors is an integer number (106551161562).

Almost surely, 2^213102323123 is an apocalyptic number.

213102323123 is a deficient number, since it is larger than the sum of its proper divisors (1).

213102323123 is an equidigital number, since it uses as much as digits as its factorization.

213102323123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 213102323123 its reverse (321323201312), we get a palindrome (534425524435).

The spelling of 213102323123 in words is "two hundred thirteen billion, one hundred two million, three hundred twenty-three thousand, one hundred twenty-three".