242423131 has 4 divisors (see below), whose sum is σ = 250243264. Its totient is φ = 234603000.

The previous prime is 242423123. The next prime is 242423161. The reversal of 242423131 is 131324242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242423131 - 2³ = 242423123 is a prime.

It is a super-2 number, since 2×242423131² = 117537948887686322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242423161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3910020 + ... + 3910081.

It is an arithmetic number, because the mean of its divisors is an integer number (62560816).

Almost surely, 2^242423131 is an apocalyptic number.

242423131 is a deficient number, since it is larger than the sum of its proper divisors (7820133).

242423131 is an equidigital number, since it uses as much as digits as its factorization.

242423131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820132.

The product of its digits is 1152, while the sum is 22.

The square root of 242423131 is about 15569.9431919323. The cubic root of 242423131 is about 623.5309548756.

Adding to 242423131 its reverse (131324242), we get a palindrome (373747373).

The spelling of 242423131 in words is "two hundred forty-two million, four hundred twenty-three thousand, one hundred thirty-one".