2121310100309 has 8 divisors (see below), whose sum is σ = 2253409316928. Its totient is φ = 1990023802560.

The previous prime is 2121310100303. The next prime is 2121310100369. The reversal of 2121310100309 is 9030010131212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2121310100309 - 2⁴⁰ = 1021798472533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121310100303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203224337 + ... + 203234774.

It is an arithmetic number, because the mean of its divisors is an integer number (281676164616).

Almost surely, 2^{2121310100309} is an apocalyptic number.

It is an amenable number.

2121310100309 is a deficient number, since it is larger than the sum of its proper divisors (132099216619).

2121310100309 is a wasteful number, since it uses less digits than its factorization.

2121310100309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406459435.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 2121310100309 in words is "two trillion, one hundred twenty-one billion, three hundred ten million, one hundred thousand, three hundred nine".