2101010641 has 2 divisors, whose sum is σ = 2101010642. Its totient is φ = 2101010640.

The previous prime is 2101010621. The next prime is 2101010669. The reversal of 2101010641 is 1460101012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1491118225 + 609892416 = 38615^2 + 24696^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101010641 - 2¹¹ = 2101008593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101010621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050505320 + 1050505321.

It is an arithmetic number, because the mean of its divisors is an integer number (1050505321).

Almost surely, 2^2101010641 is an apocalyptic number.

It is an amenable number.

2101010641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101010641 is an equidigital number, since it uses as much as digits as its factorization.

2101010641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 2101010641 is about 45836.7826205112. The cubic root of 2101010641 is about 1280.7845615348.

Adding to 2101010641 its reverse (1460101012), we get a palindrome (3561111653).

The spelling of 2101010641 in words is "two billion, one hundred one million, ten thousand, six hundred forty-one".