101211300309 has 24 divisors (see below), whose sum is σ = 157102683168. Its totient is φ = 57790121760.

The previous prime is 101211300277. The next prime is 101211300347. The reversal of 101211300309 is 903003112101.

It is not a de Polignac number, because 101211300309 - 2⁵ = 101211300277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211300209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76882 + ... + 456435.

It is an arithmetic number, because the mean of its divisors is an integer number (6545945132).

Almost surely, 2^101211300309 is an apocalyptic number.

It is an amenable number.

101211300309 is a deficient number, since it is larger than the sum of its proper divisors (55891382859).

101211300309 is a wasteful number, since it uses less digits than its factorization.

101211300309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534625 (or 534618 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The spelling of 101211300309 in words is "one hundred one billion, two hundred eleven million, three hundred thousand, three hundred nine".