2111021093 has 2 divisors, whose sum is σ = 2111021094. Its totient is φ = 2111021092.

The previous prime is 2111021089. The next prime is 2111021113. The reversal of 2111021093 is 3901201112.

It is an a-pointer prime, because the next prime (2111021113) can be obtained adding 2111021093 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1089132004 + 1021889089 = 33002^2 + 31967^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111021093 - 2² = 2111021089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111021063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510546 + 1055510547.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510547).

Almost surely, 2^2111021093 is an apocalyptic number.

It is an amenable number.

2111021093 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111021093 is an equidigital number, since it uses as much as digits as its factorization.

2111021093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 2111021093 is about 45945.8495731660. The cubic root of 2111021093 is about 1282.8154767558.

The spelling of 2111021093 in words is "two billion, one hundred eleven million, twenty-one thousand, ninety-three".