1142238611 has 2 divisors, whose sum is σ = 1142238612. Its totient is φ = 1142238610.

The previous prime is 1142238607. The next prime is 1142238641. The reversal of 1142238611 is 1168322411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1142238611 - 2² = 1142238607 is a prime.

It is not a weakly prime, because it can be changed into another prime (1142238641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571119305 + 571119306.

It is an arithmetic number, because the mean of its divisors is an integer number (571119306).

Almost surely, 2^1142238611 is an apocalyptic number.

1142238611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142238611 is an equidigital number, since it uses as much as digits as its factorization.

1142238611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 1142238611 is about 33797.0207414796. The cubic root of 1142238611 is about 1045.3272666821.

The spelling of 1142238611 in words is "one billion, one hundred forty-two million, two hundred thirty-eight thousand, six hundred eleven".