1020112000209 has 6 divisors (see below), whose sum is σ = 1473495111426. Its totient is φ = 680074666800.

The previous prime is 1020112000153. The next prime is 1020112000273. The reversal of 1020112000209 is 9020002110201.

It can be written as a sum of positive squares in only one way, i.e., 1018847984400 + 1264015809 = 1009380^2 + 35553^2 .

It is not a de Polignac number, because 1020112000209 - 2¹¹ = 1020111998161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020112000191 and 1020112000200.

It is not an unprimeable number, because it can be changed into a prime (1020112000109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56672888892 + ... + 56672888909.

It is an arithmetic number, because the mean of its divisors is an integer number (245582518571).

Almost surely, 2^{1020112000209} is an apocalyptic number.

It is an amenable number.

1020112000209 is a deficient number, since it is larger than the sum of its proper divisors (453383111217).

1020112000209 is a wasteful number, since it uses less digits than its factorization.

1020112000209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113345777807 (or 113345777804 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 1020112000209 in words is "one trillion, twenty billion, one hundred twelve million, two hundred nine", and thus it is an aban number.