109019100009 has 4 divisors (see below), whose sum is σ = 145358800016. Its totient is φ = 72679400004.

The previous prime is 109019100007. The next prime is 109019100013. The reversal of 109019100009 is 900001910901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 900001910901 = 3 ⋅300000636967.

It is not a de Polignac number, because 109019100009 - 2¹ = 109019100007 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109019100007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18169849999 + ... + 18169850004.

It is an arithmetic number, because the mean of its divisors is an integer number (36339700004).

Almost surely, 2^109019100009 is an apocalyptic number.

It is an amenable number.

109019100009 is a deficient number, since it is larger than the sum of its proper divisors (36339700007).

109019100009 is an equidigital number, since it uses as much as digits as its factorization.

109019100009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36339700006.

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 109019100009 in words is "one hundred nine billion, nineteen million, one hundred thousand, nine".