2306306041021 has 2 divisors, whose sum is σ = 2306306041022. Its totient is φ = 2306306041020.

The previous prime is 2306306041009. The next prime is 2306306041043. The reversal of 2306306041021 is 1201406036032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1660010635396 + 646295405625 = 1288414^2 + 803925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2306306041021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2306306041321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1153153020510 + 1153153020511.

It is an arithmetic number, because the mean of its divisors is an integer number (1153153020511).

Almost surely, 2^{2306306041021} is an apocalyptic number.

It is an amenable number.

2306306041021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2306306041021 is an equidigital number, since it uses as much as digits as its factorization.

2306306041021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

The spelling of 2306306041021 in words is "two trillion, three hundred six billion, three hundred six million, forty-one thousand, twenty-one".