1005100505111 has 2 divisors, whose sum is σ = 1005100505112. Its totient is φ = 1005100505110.

The previous prime is 1005100505051. The next prime is 1005100505173. The reversal of 1005100505111 is 1115050015001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1005100505111 - 2²² = 1005096310807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1005100505611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502550252555 + 502550252556.

It is an arithmetic number, because the mean of its divisors is an integer number (502550252556).

Almost surely, 2^{1005100505111} is an apocalyptic number.

1005100505111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005100505111 is an equidigital number, since it uses as much as digits as its factorization.

1005100505111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125, while the sum is 20.

The spelling of 1005100505111 in words is "one trillion, five billion, one hundred million, five hundred five thousand, one hundred eleven".