1111111139 has 2 divisors, whose sum is σ = 1111111140. Its totient is φ = 1111111138.

The previous prime is 1111111121. The next prime is 1111111181. The reversal of 1111111139 is 9311111111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111111139 - 2⁸ = 1111110883 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 1111111139.

It is not a weakly prime, because it can be changed into another prime (1111101139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555555569 + 555555570.

It is an arithmetic number, because the mean of its divisors is an integer number (555555570).

Almost surely, 2^1111111139 is an apocalyptic number.

1111111139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111111139 is an equidigital number, since it uses as much as digits as its factorization.

1111111139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27, while the sum is 20.

The square root of 1111111139 is about 33333.3337516667. Note that the first 3 decimals coincide. The cubic root of 1111111139 is about 1035.7441773170.

The spelling of 1111111139 in words is "one billion, one hundred eleven million, one hundred eleven thousand, one hundred thirty-nine".