210232312123 has 2 divisors, whose sum is σ = 210232312124. Its totient is φ = 210232312122.

The previous prime is 210232312111. The next prime is 210232312201. The reversal of 210232312123 is 321213232012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210232312123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210232312094 and 210232312103.

It is not a weakly prime, because it can be changed into another prime (210232316123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105116156061 + 105116156062.

It is an arithmetic number, because the mean of its divisors is an integer number (105116156062).

Almost surely, 2^210232312123 is an apocalyptic number.

210232312123 is a deficient number, since it is larger than the sum of its proper divisors (1).

210232312123 is an equidigital number, since it uses as much as digits as its factorization.

210232312123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 210232312123 its reverse (321213232012), we get a palindrome (531445544135).

The spelling of 210232312123 in words is "two hundred ten billion, two hundred thirty-two million, three hundred twelve thousand, one hundred twenty-three".