42112163251 has 2 divisors, whose sum is σ = 42112163252. Its totient is φ = 42112163250.

The previous prime is 42112163227. The next prime is 42112163273. The reversal of 42112163251 is 15236121124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42112163251 - 2⁹ = 42112162739 is a prime.

It is not a weakly prime, because it can be changed into another prime (42112163351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21056081625 + 21056081626.

It is an arithmetic number, because the mean of its divisors is an integer number (21056081626).

Almost surely, 2^42112163251 is an apocalyptic number.

42112163251 is a deficient number, since it is larger than the sum of its proper divisors (1).

42112163251 is an equidigital number, since it uses as much as digits as its factorization.

42112163251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

Adding to 42112163251 its reverse (15236121124), we get a palindrome (57348284375).

The spelling of 42112163251 in words is "forty-two billion, one hundred twelve million, one hundred sixty-three thousand, two hundred fifty-one".