11111001010009 has 4 divisors (see below), whose sum is σ = 11111311140480. Its totient is φ = 11110690879540.

The previous prime is 11111001010007. The next prime is 11111001010013. The reversal of 11111001010009 is 90001010011111.

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 not a de Polignac number, because 11111001010009 - 2¹ = 11111001010007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111001009974 and 11111001010001.

It is not an unprimeable number, because it can be changed into a prime (11111001010007) 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, 155011489 + ... + 155083150.

It is an arithmetic number, because the mean of its divisors is an integer number (2777827785120).

Almost surely, 2^{11111001010009} is an apocalyptic number.

It is an amenable number.

11111001010009 is a deficient number, since it is larger than the sum of its proper divisors (310130471).

11111001010009 is an equidigital number, since it uses as much as digits as its factorization.

11111001010009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310130470.

The product of its (nonzero) digits is 9, while the sum is 16.

The spelling of 11111001010009 in words is "eleven trillion, one hundred eleven billion, one million, ten thousand, nine".