1098565103 has 4 divisors (see below), whose sum is σ = 1102531320. Its totient is φ = 1094598888.

The previous prime is 1098565093. The next prime is 1098565151. The reversal of 1098565103 is 3015658901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3015658901 = 151 ⋅19971251.

It is a cyclic number.

It is not a de Polignac number, because 1098565103 - 2⁴ = 1098565087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098565163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1982693 + ... + 1983246.

It is an arithmetic number, because the mean of its divisors is an integer number (275632830).

Almost surely, 2^1098565103 is an apocalyptic number.

1098565103 is a deficient number, since it is larger than the sum of its proper divisors (3966217).

1098565103 is an equidigital number, since it uses as much as digits as its factorization.

1098565103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966216.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 1098565103 is about 33144.6089583208. The cubic root of 1098565103 is about 1031.8310669212.

The spelling of 1098565103 in words is "one billion, ninety-eight million, five hundred sixty-five thousand, one hundred three".