2011000111993 has 2 divisors, whose sum is σ = 2011000111994. Its totient is φ = 2011000111992.

The previous prime is 2011000111973. The next prime is 2011000112039. The reversal of 2011000111993 is 3991110001102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1314581488704 + 696418623289 = 1146552^2 + 834517^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011000111993 - 2³³ = 2002410177401 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011000111933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005500055996 + 1005500055997.

It is an arithmetic number, because the mean of its divisors is an integer number (1005500055997).

Almost surely, 2^{2011000111993} is an apocalyptic number.

It is an amenable number.

2011000111993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011000111993 is an equidigital number, since it uses as much as digits as its factorization.

2011000111993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 28.

The spelling of 2011000111993 in words is "two trillion, eleven billion, one hundred eleven thousand, nine hundred ninety-three".