1031120011 has 2 divisors, whose sum is σ = 1031120012. Its totient is φ = 1031120010.

The previous prime is 1031120003. The next prime is 1031120059. The reversal of 1031120011 is 1100211301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1031120011 - 2³ = 1031120003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1031120011.

It is not a weakly prime, because it can be changed into another prime (1031120611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515560005 + 515560006.

It is an arithmetic number, because the mean of its divisors is an integer number (515560006).

Almost surely, 2^1031120011 is an apocalyptic number.

1031120011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031120011 is an equidigital number, since it uses as much as digits as its factorization.

1031120011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1031120011 is about 32111.0574568948. The cubic root of 1031120011 is about 1010.2675535335.

Adding to 1031120011 its reverse (1100211301), we get a palindrome (2131331312).

The spelling of 1031120011 in words is "one billion, thirty-one million, one hundred twenty thousand, eleven".