2111009381389 has 4 divisors (see below), whose sum is σ = 2179106458240. Its totient is φ = 2042912304540.

The previous prime is 2111009381323. The next prime is 2111009381441. The reversal of 2111009381389 is 9831839001112.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111009381389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111009381489) 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 3 ways as a sum of consecutive naturals, for example, 34048538379 + ... + 34048538440.

It is an arithmetic number, because the mean of its divisors is an integer number (544776614560).

Almost surely, 2^{2111009381389} is an apocalyptic number.

It is an amenable number.

2111009381389 is a deficient number, since it is larger than the sum of its proper divisors (68097076851).

2111009381389 is an equidigital number, since it uses as much as digits as its factorization.

2111009381389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68097076850.

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 2111009381389 in words is "two trillion, one hundred eleven billion, nine million, three hundred eighty-one thousand, three hundred eighty-nine".