42551424212431 has 2 divisors, whose sum is σ = 42551424212432. Its totient is φ = 42551424212430.

The previous prime is 42551424212413. The next prime is 42551424212443. The reversal of 42551424212431 is 13421242415524.

Together with previous prime (42551424212413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42551424212431 - 2¹⁹ = 42551423688143 is a prime.

It is a super-2 number, since 2×42551424212431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42551424212471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21275712106215 + 21275712106216.

It is an arithmetic number, because the mean of its divisors is an integer number (21275712106216).

Almost surely, 2^{42551424212431} is an apocalyptic number.

42551424212431 is a deficient number, since it is larger than the sum of its proper divisors (1).

42551424212431 is an equidigital number, since it uses as much as digits as its factorization.

42551424212431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 307200, while the sum is 40.

Adding to 42551424212431 its reverse (13421242415524), we get a palindrome (55972666627955).

The spelling of 42551424212431 in words is "forty-two trillion, five hundred fifty-one billion, four hundred twenty-four million, two hundred twelve thousand, four hundred thirty-one".