1020109208199 has 8 divisors (see below), whose sum is σ = 1361392311552. Its totient is φ = 679449455160.

The previous prime is 1020109208191. The next prime is 1020109208201. The reversal of 1020109208199 is 9918029010201.

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

It is not a de Polignac number, because 1020109208199 - 2³ = 1020109208191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020109208199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020109208191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155833759 + ... + 155840304.

It is an arithmetic number, because the mean of its divisors is an integer number (170174038944).

Almost surely, 2^{1020109208199} is an apocalyptic number.

1020109208199 is a deficient number, since it is larger than the sum of its proper divisors (341283103353).

1020109208199 is a wasteful number, since it uses less digits than its factorization.

1020109208199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311675157.

The product of its (nonzero) digits is 23328, while the sum is 42.

The spelling of 1020109208199 in words is "one trillion, twenty billion, one hundred nine million, two hundred eight thousand, one hundred ninety-nine".