242641423 has 2 divisors, whose sum is σ = 242641424. Its totient is φ = 242641422.

The previous prime is 242641411. The next prime is 242641471. The reversal of 242641423 is 324146242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242641423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242641391 and 242641400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242642423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121320711 + 121320712.

It is an arithmetic number, because the mean of its divisors is an integer number (121320712).

Almost surely, 2^242641423 is an apocalyptic number.

242641423 is a deficient number, since it is larger than the sum of its proper divisors (1).

242641423 is an equidigital number, since it uses as much as digits as its factorization.

242641423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

The square root of 242641423 is about 15576.9516594230. The cubic root of 242641423 is about 623.7180533382.

Adding to 242641423 its reverse (324146242), we get a palindrome (566787665).

The spelling of 242641423 in words is "two hundred forty-two million, six hundred forty-one thousand, four hundred twenty-three".