1103044215165 has 32 divisors (see below), whose sum is σ = 1791326624256. Its totient is φ = 579472745280.

The previous prime is 1103044215157. The next prime is 1103044215179. The reversal of 1103044215165 is 5615124403011.

It is not a de Polignac number, because 1103044215165 - 2³ = 1103044215157 is a prime.

It is a super-3 number, since 3×1103044215165³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23625334 + ... + 23671976.

It is an arithmetic number, because the mean of its divisors is an integer number (55978957008).

Almost surely, 2^{1103044215165} is an apocalyptic number.

1103044215165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1103044215165 is a deficient number, since it is larger than the sum of its proper divisors (688282409091).

1103044215165 is a wasteful number, since it uses less digits than its factorization.

1103044215165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70249.

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 1103044215165 its reverse (5615124403011), we get a palindrome (6718168618176).

The spelling of 1103044215165 in words is "one trillion, one hundred three billion, forty-four million, two hundred fifteen thousand, one hundred sixty-five".