1011060510991 has 2 divisors, whose sum is σ = 1011060510992. Its totient is φ = 1011060510990.

The previous prime is 1011060510953. The next prime is 1011060511061. The reversal of 1011060510991 is 1990150601101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1011060510991 - 2¹⁵ = 1011060478223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011060310991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505530255495 + 505530255496.

It is an arithmetic number, because the mean of its divisors is an integer number (505530255496).

Almost surely, 2^{1011060510991} is an apocalyptic number.

1011060510991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011060510991 is an equidigital number, since it uses as much as digits as its factorization.

1011060510991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 34.

The spelling of 1011060510991 in words is "one trillion, eleven billion, sixty million, five hundred ten thousand, nine hundred ninety-one".