11100551115 has 32 divisors (see below), whose sum is σ = 19313916480. Its totient is φ = 5421441024.

The previous prime is 11100551101. The next prime is 11100551153. The reversal of 11100551115 is 51115500111.

It is not a de Polignac number, because 11100551115 - 2⁸ = 11100550859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11100551091 and 11100551100.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578830 + ... + 597699.

It is an arithmetic number, because the mean of its divisors is an integer number (603559890).

Almost surely, 2^11100551115 is an apocalyptic number.

11100551115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11100551115 is a deficient number, since it is larger than the sum of its proper divisors (8213365365).

11100551115 is a wasteful number, since it uses less digits than its factorization.

11100551115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176591.

The product of its (nonzero) digits is 125, while the sum is 21.

The spelling of 11100551115 in words is "eleven billion, one hundred million, five hundred fifty-one thousand, one hundred fifteen".