11109900011 has 32 divisors (see below), whose sum is σ = 13219670016. Its totient is φ = 9139392000.

The previous prime is 11109899989. The next prime is 11109900037. The reversal of 11109900011 is 11000990111.

It is a happy number.

It is not a de Polignac number, because 11109900011 - 2¹⁸ = 11109637867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11109900011.

It is not an unprimeable number, because it can be changed into a prime (11109900071) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6454631 + ... + 6456351.

It is an arithmetic number, because the mean of its divisors is an integer number (413114688).

Almost surely, 2^11109900011 is an apocalyptic number.

11109900011 is a deficient number, since it is larger than the sum of its proper divisors (2109770005).

11109900011 is a wasteful number, since it uses less digits than its factorization.

11109900011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2123.

The product of its (nonzero) digits is 81, while the sum is 23.

The spelling of 11109900011 in words is "eleven billion, one hundred nine million, nine hundred thousand, eleven".