1020200102109 has 40 divisors (see below), whose sum is σ = 1538661342240. Its totient is φ = 673611962400.

The previous prime is 1020200102107. The next prime is 1020200102111. The reversal of 1020200102109 is 9012010020201.

1020200102109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1020200102107) and next prime (1020200102111).

It is not a de Polignac number, because 1020200102109 - 2¹ = 1020200102107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020200102091 and 1020200102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020200102107) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5306554 + ... + 5495444.

It is an arithmetic number, because the mean of its divisors is an integer number (38466533556).

Almost surely, 2^{1020200102109} is an apocalyptic number.

It is an amenable number.

1020200102109 is a deficient number, since it is larger than the sum of its proper divisors (518461240131).

1020200102109 is a wasteful number, since it uses less digits than its factorization.

1020200102109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189543 (or 189534 counting only the distinct ones).

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

The spelling of 1020200102109 in words is "one trillion, twenty billion, two hundred million, one hundred two thousand, one hundred nine".