1200001141 has 2 divisors, whose sum is σ = 1200001142. Its totient is φ = 1200001140.

The previous prime is 1200001123. The next prime is 1200001157. The reversal of 1200001141 is 1411000021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1052742916 + 147258225 = 32446^2 + 12135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200001141 - 2⁷ = 1200001013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200001171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600000570 + 600000571.

It is an arithmetic number, because the mean of its divisors is an integer number (600000571).

Almost surely, 2^1200001141 is an apocalyptic number.

It is an amenable number.

1200001141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200001141 is an equidigital number, since it uses as much as digits as its factorization.

1200001141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1200001141 is about 34641.0326202901. The cubic root of 1200001141 is about 1062.6589059862.

Adding to 1200001141 its reverse (1411000021), we get a palindrome (2611001162).

The spelling of 1200001141 in words is "one billion, two hundred million, one thousand, one hundred forty-one".