2011868093 has 2 divisors, whose sum is σ = 2011868094. Its totient is φ = 2011868092.

The previous prime is 2011868083. The next prime is 2011868123. The reversal of 2011868093 is 3908681102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1739056804 + 272811289 = 41702^2 + 16517^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011868093 - 2¹⁶ = 2011802557 is a prime.

It is a super-2 number, since 2×2011868093² = 8095226447262913298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011868003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005934046 + 1005934047.

It is an arithmetic number, because the mean of its divisors is an integer number (1005934047).

Almost surely, 2^2011868093 is an apocalyptic number.

It is an amenable number.

2011868093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011868093 is an equidigital number, since it uses as much as digits as its factorization.

2011868093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2011868093 is about 44853.8525993030. The cubic root of 2011868093 is about 1262.4082799492.

The spelling of 2011868093 in words is "two billion, eleven million, eight hundred sixty-eight thousand, ninety-three".