242544401423 has 2 divisors, whose sum is σ = 242544401424. Its totient is φ = 242544401422.

The previous prime is 242544401401. The next prime is 242544401471. The reversal of 242544401423 is 324104445242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242544401423 - 2²⁰ = 242543352847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242544401483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121272200711 + 121272200712.

It is an arithmetic number, because the mean of its divisors is an integer number (121272200712).

Almost surely, 2^242544401423 is an apocalyptic number.

242544401423 is a deficient number, since it is larger than the sum of its proper divisors (1).

242544401423 is an equidigital number, since it uses as much as digits as its factorization.

242544401423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 122880, while the sum is 35.

Adding to 242544401423 its reverse (324104445242), we get a palindrome (566648846665).

The spelling of 242544401423 in words is "two hundred forty-two billion, five hundred forty-four million, four hundred one thousand, four hundred twenty-three".