243423314023 has 2 divisors, whose sum is σ = 243423314024. Its totient is φ = 243423314022.

The previous prime is 243423313963. The next prime is 243423314063. The reversal of 243423314023 is 320413324342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243423314023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243423314063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121711657011 + 121711657012.

It is an arithmetic number, because the mean of its divisors is an integer number (121711657012).

Almost surely, 2^243423314023 is an apocalyptic number.

243423314023 is a deficient number, since it is larger than the sum of its proper divisors (1).

243423314023 is an equidigital number, since it uses as much as digits as its factorization.

243423314023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 243423314023 its reverse (320413324342), we get a palindrome (563836638365).

The spelling of 243423314023 in words is "two hundred forty-three billion, four hundred twenty-three million, three hundred fourteen thousand, twenty-three".