1005500501011 has 2 divisors, whose sum is σ = 1005500501012. Its totient is φ = 1005500501010.

The previous prime is 1005500500993. The next prime is 1005500501021. The reversal of 1005500501011 is 1101050055001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1005500501011 - 2⁷ = 1005500500883 is a prime.

It is a super-2 number, since 2×1005500501011² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1005500501011.

It is not a weakly prime, because it can be changed into another prime (1005500501021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502750250505 + 502750250506.

It is an arithmetic number, because the mean of its divisors is an integer number (502750250506).

Almost surely, 2^{1005500501011} is an apocalyptic number.

1005500501011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005500501011 is an equidigital number, since it uses as much as digits as its factorization.

1005500501011 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 19.

Adding to 1005500501011 its reverse (1101050055001), we get a palindrome (2106550556012).

The spelling of 1005500501011 in words is "one trillion, five billion, five hundred million, five hundred one thousand, eleven".