1142181013 has 2 divisors, whose sum is σ = 1142181014. Its totient is φ = 1142181012.

The previous prime is 1142180971. The next prime is 1142181031. The reversal of 1142181013 is 3101812411.

1142181013 = 23897² + 23898².

Together with next prime (1142181031) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 571114404 + 571066609 = 23898^2 + 23897^2 .

It is an emirp because it is prime and its reverse (3101812411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142181013 - 2²⁵ = 1108626581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142181043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571090506 + 571090507.

It is an arithmetic number, because the mean of its divisors is an integer number (571090507).

Almost surely, 2^1142181013 is an apocalyptic number.

1142181013 is the 23898-th centered square number.

It is an amenable number.

1142181013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142181013 is an equidigital number, since it uses as much as digits as its factorization.

1142181013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 1142181013 is about 33796.1686142083. The cubic root of 1142181013 is about 1045.3096959891.

Adding to 1142181013 its reverse (3101812411), we get a palindrome (4243993424).

The spelling of 1142181013 in words is "one billion, one hundred forty-two million, one hundred eighty-one thousand, thirteen".