1001201027 has 2 divisors, whose sum is σ = 1001201028. Its totient is φ = 1001201026.

The previous prime is 1001200999. The next prime is 1001201081. The reversal of 1001201027 is 7201021001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001201027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1009201027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500600513 + 500600514.

It is an arithmetic number, because the mean of its divisors is an integer number (500600514).

Almost surely, 2^1001201027 is an apocalyptic number.

1001201027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001201027 is an equidigital number, since it uses as much as digits as its factorization.

1001201027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1001201027 is about 31641.7608075151. The cubic root of 1001201027 is about 1000.4001821662.

Adding to 1001201027 its reverse (7201021001), we get a palindrome (8202222028).

The spelling of 1001201027 in words is "one billion, one million, two hundred one thousand, twenty-seven".