255342240431 has 2 divisors, whose sum is σ = 255342240432. Its totient is φ = 255342240430.

The previous prime is 255342240403. The next prime is 255342240437. The reversal of 255342240431 is 134042243552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255342240431 - 2⁶ = 255342240367 is a prime.

It is a super-2 number, since 2×255342240431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255342240391 and 255342240400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255342240437) 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 as a sum of consecutive naturals, namely, 127671120215 + 127671120216.

It is an arithmetic number, because the mean of its divisors is an integer number (127671120216).

Almost surely, 2^255342240431 is an apocalyptic number.

255342240431 is a deficient number, since it is larger than the sum of its proper divisors (1).

255342240431 is an equidigital number, since it uses as much as digits as its factorization.

255342240431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 255342240431 its reverse (134042243552), we get a palindrome (389384483983).

The spelling of 255342240431 in words is "two hundred fifty-five billion, three hundred forty-two million, two hundred forty thousand, four hundred thirty-one".