242131223 has 2 divisors, whose sum is σ = 242131224. Its totient is φ = 242131222.

The previous prime is 242131217. The next prime is 242131259. The reversal of 242131223 is 322131242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242131223 - 2¹⁴ = 242114839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242131195 and 242131204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242131283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121065611 + 121065612.

It is an arithmetic number, because the mean of its divisors is an integer number (121065612).

Almost surely, 2^242131223 is an apocalyptic number.

242131223 is a deficient number, since it is larger than the sum of its proper divisors (1).

242131223 is an equidigital number, since it uses as much as digits as its factorization.

242131223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 576, while the sum is 20.

The square root of 242131223 is about 15560.5662814693. The cubic root of 242131223 is about 623.2805844071.

Adding to 242131223 its reverse (322131242), we get a palindrome (564262465).

The spelling of 242131223 in words is "two hundred forty-two million, one hundred thirty-one thousand, two hundred twenty-three".