12142103447 has 2 divisors, whose sum is σ = 12142103448. Its totient is φ = 12142103446.

The previous prime is 12142103419. The next prime is 12142103473. The reversal of 12142103447 is 74430124121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12142103447 - 2¹² = 12142099351 is a prime.

It is a super-2 number, since 2×12142103447² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12142103047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6071051723 + 6071051724.

It is an arithmetic number, because the mean of its divisors is an integer number (6071051724).

Almost surely, 2^12142103447 is an apocalyptic number.

12142103447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12142103447 is an equidigital number, since it uses as much as digits as its factorization.

12142103447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 12142103447 its reverse (74430124121), we get a palindrome (86572227568).

The spelling of 12142103447 in words is "twelve billion, one hundred forty-two million, one hundred three thousand, four hundred forty-seven".