1142321113 has 2 divisors, whose sum is σ = 1142321114. Its totient is φ = 1142321112.

The previous prime is 1142321111. The next prime is 1142321161. The reversal of 1142321113 is 3111232411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 737828569 + 404492544 = 27163^2 + 20112^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142321113 - 2¹ = 1142321111 is a prime.

Together with 1142321111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1142321111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571160556 + 571160557.

It is an arithmetic number, because the mean of its divisors is an integer number (571160557).

Almost surely, 2^1142321113 is an apocalyptic number.

It is an amenable number.

1142321113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142321113 is an equidigital number, since it uses as much as digits as its factorization.

1142321113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 1142321113 is about 33798.2412708117. The cubic root of 1142321113 is about 1045.3524334943.

Adding to 1142321113 its reverse (3111232411), we get a palindrome (4253553524).

The spelling of 1142321113 in words is "one billion, one hundred forty-two million, three hundred twenty-one thousand, one hundred thirteen".