2011012009873 has 2 divisors, whose sum is σ = 2011012009874. Its totient is φ = 2011012009872.

The previous prime is 2011012009847. The next prime is 2011012009883. The reversal of 2011012009873 is 3789002101102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1773563389504 + 237448620369 = 1331752^2 + 487287^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011012009873 - 2⁵ = 2011012009841 is a prime.

It is a super-2 number, since 2×2011012009873² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2011012009883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005506004936 + 1005506004937.

It is an arithmetic number, because the mean of its divisors is an integer number (1005506004937).

Almost surely, 2^{2011012009873} is an apocalyptic number.

It is an amenable number.

2011012009873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011012009873 is an equidigital number, since it uses as much as digits as its factorization.

2011012009873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 2011012009873 in words is "two trillion, eleven billion, twelve million, nine thousand, eight hundred seventy-three".