1109553459091 has 8 divisors (see below), whose sum is σ = 1383339377664. Its totient is φ = 864587110920.

The previous prime is 1109553459073. The next prime is 1109553459107. The reversal of 1109553459091 is 1909543559011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1109553459091 - 2⁵ = 1109553459059 is a prime.

It is a super-2 number, since 2×1109553459091² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109553459031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7204892515 + ... + 7204892668.

It is an arithmetic number, because the mean of its divisors is an integer number (172917422208).

Almost surely, 2^{1109553459091} is an apocalyptic number.

1109553459091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1109553459091 is a deficient number, since it is larger than the sum of its proper divisors (273785918573).

1109553459091 is a wasteful number, since it uses less digits than its factorization.

1109553459091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14409785201.

The product of its (nonzero) digits is 1093500, while the sum is 52.

The spelling of 1109553459091 in words is "one trillion, one hundred nine billion, five hundred fifty-three million, four hundred fifty-nine thousand, ninety-one".