243113449951 has 2 divisors, whose sum is σ = 243113449952. Its totient is φ = 243113449950.

The previous prime is 243113449841. The next prime is 243113449979. The reversal of 243113449951 is 159944311342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243113449951 - 2¹¹ = 243113447903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243113449351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121556724975 + 121556724976.

It is an arithmetic number, because the mean of its divisors is an integer number (121556724976).

Almost surely, 2^243113449951 is an apocalyptic number.

243113449951 is a deficient number, since it is larger than the sum of its proper divisors (1).

243113449951 is an equidigital number, since it uses as much as digits as its factorization.

243113449951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 46.

The spelling of 243113449951 in words is "two hundred forty-three billion, one hundred thirteen million, four hundred forty-nine thousand, nine hundred fifty-one".