11111000001 has 16 divisors (see below), whose sum is σ = 15206639808. Its totient is φ = 7213752000.

The previous prime is 11110999981. The next prime is 11111000009. The reversal of 11111000001 is 10000011111.

It is not a de Polignac number, because 11111000001 - 2⁵ = 11110999969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111000009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282091 + ... + 319056.

It is an arithmetic number, because the mean of its divisors is an integer number (950414988).

Almost surely, 2^11111000001 is an apocalyptic number.

It is an amenable number.

11111000001 is a deficient number, since it is larger than the sum of its proper divisors (4095639807).

11111000001 is a wasteful number, since it uses less digits than its factorization.

11111000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601312.

The product of its (nonzero) digits is 1, while the sum is 6.

Adding to 11111000001 its reverse (10000011111), we get a palindrome (21111011112).

It can be divided in two parts, 1111 and 1000001, that multiplied together give a palindrome (1111001111).

The spelling of 11111000001 in words is "eleven billion, one hundred eleven million, one", and thus it is an aban number.