210144430123 has 2 divisors, whose sum is σ = 210144430124. Its totient is φ = 210144430122.

The previous prime is 210144430057. The next prime is 210144430157. The reversal of 210144430123 is 321034441012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210144430123 is a prime.

It is not a weakly prime, because it can be changed into another prime (210144430193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105072215061 + 105072215062.

It is an arithmetic number, because the mean of its divisors is an integer number (105072215062).

Almost surely, 2^210144430123 is an apocalyptic number.

210144430123 is a deficient number, since it is larger than the sum of its proper divisors (1).

210144430123 is an equidigital number, since it uses as much as digits as its factorization.

210144430123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 210144430123 its reverse (321034441012), we get a palindrome (531178871135).

The spelling of 210144430123 in words is "two hundred ten billion, one hundred forty-four million, four hundred thirty thousand, one hundred twenty-three".