242321331431 has 2 divisors, whose sum is σ = 242321331432. Its totient is φ = 242321331430.

The previous prime is 242321331367. The next prime is 242321331451. The reversal of 242321331431 is 134133123242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242321331431 - 2⁶ = 242321331367 is a prime.

It is a super-2 number, since 2×242321331431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242321331394 and 242321331403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242321331451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121160665715 + 121160665716.

It is an arithmetic number, because the mean of its divisors is an integer number (121160665716).

Almost surely, 2^242321331431 is an apocalyptic number.

242321331431 is a deficient number, since it is larger than the sum of its proper divisors (1).

242321331431 is an equidigital number, since it uses as much as digits as its factorization.

242321331431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 29.

Adding to 242321331431 its reverse (134133123242), we get a palindrome (376454454673).

The spelling of 242321331431 in words is "two hundred forty-two billion, three hundred twenty-one million, three hundred thirty-one thousand, four hundred thirty-one".