12001019747 has 2 divisors, whose sum is σ = 12001019748. Its totient is φ = 12001019746.

The previous prime is 12001019713. The next prime is 12001019749. The reversal of 12001019747 is 74791010021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12001019747 - 2¹² = 12001015651 is a prime.

Together with 12001019749, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12001019749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000509873 + 6000509874.

It is an arithmetic number, because the mean of its divisors is an integer number (6000509874).

Almost surely, 2^12001019747 is an apocalyptic number.

12001019747 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001019747 is an equidigital number, since it uses as much as digits as its factorization.

12001019747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 32.

Adding to 12001019747 its reverse (74791010021), we get a palindrome (86792029768).

The spelling of 12001019747 in words is "twelve billion, one million, nineteen thousand, seven hundred forty-seven".