2010101309 has 2 divisors, whose sum is σ = 2010101310. Its totient is φ = 2010101308.

The previous prime is 2010101299. The next prime is 2010101329. The reversal of 2010101309 is 9031010102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1044259225 + 965842084 = 32315^2 + 31078^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010101309 - 2²⁰ = 2009052733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2010101329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005050654 + 1005050655.

It is an arithmetic number, because the mean of its divisors is an integer number (1005050655).

Almost surely, 2^2010101309 is an apocalyptic number.

It is an amenable number.

2010101309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010101309 is an equidigital number, since it uses as much as digits as its factorization.

2010101309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 2010101309 is about 44834.1533766391. The cubic root of 2010101309 is about 1262.0386308030.

The spelling of 2010101309 in words is "two billion, ten million, one hundred one thousand, three hundred nine".