242124131231 has 4 divisors (see below), whose sum is σ = 242817897000. Its totient is φ = 241430365464.

The previous prime is 242124131219. The next prime is 242124131261. The reversal of 242124131231 is 132131421242.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132131421242 = 2 ⋅66065710621.

It is a cyclic number.

It is not a de Polignac number, because 242124131231 - 2²⁶ = 242057022367 is a prime.

It is a super-2 number, since 2×242124131231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242124131231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242124131261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346882361 + ... + 346883058.

It is an arithmetic number, because the mean of its divisors is an integer number (60704474250).

Almost surely, 2^242124131231 is an apocalyptic number.

242124131231 is a deficient number, since it is larger than the sum of its proper divisors (693765769).

242124131231 is an equidigital number, since it uses as much as digits as its factorization.

242124131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693765768.

The product of its digits is 2304, while the sum is 26.

Adding to 242124131231 its reverse (132131421242), we get a palindrome (374255552473).

The spelling of 242124131231 in words is "two hundred forty-two billion, one hundred twenty-four million, one hundred thirty-one thousand, two hundred thirty-one".