242124210331 has 4 divisors (see below), whose sum is σ = 246692591712. Its totient is φ = 237555828952.

The previous prime is 242124210287. The next prime is 242124210343. The reversal of 242124210331 is 133012421242.

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 242124210331 - 2⁷ = 242124210203 is a prime.

It is a super-2 number, since 2×242124210331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242124210296 and 242124210305.

It is not an unprimeable number, because it can be changed into a prime (242124210631) 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, 2284190611 + ... + 2284190716.

It is an arithmetic number, because the mean of its divisors is an integer number (61673147928).

Almost surely, 2^242124210331 is an apocalyptic number.

242124210331 is a deficient number, since it is larger than the sum of its proper divisors (4568381381).

242124210331 is an equidigital number, since it uses as much as digits as its factorization.

242124210331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568381380.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 242124210331 its reverse (133012421242), we get a palindrome (375136631573).

The spelling of 242124210331 in words is "two hundred forty-two billion, one hundred twenty-four million, two hundred ten thousand, three hundred thirty-one".