1165233103 has 4 divisors (see below), whose sum is σ = 1176123240. Its totient is φ = 1154342968.

The previous prime is 1165233101. The next prime is 1165233131. The reversal of 1165233103 is 3013325611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3013325611 = 23 ⋅131014157.

It is a cyclic number.

It is not a de Polignac number, because 1165233103 - 2¹ = 1165233101 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 (1165233101) 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, 5444908 + ... + 5445121.

It is an arithmetic number, because the mean of its divisors is an integer number (294030810).

Almost surely, 2^1165233103 is an apocalyptic number.

1165233103 is a deficient number, since it is larger than the sum of its proper divisors (10890137).

1165233103 is a wasteful number, since it uses less digits than its factorization.

1165233103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890136.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1165233103 is about 34135.5108794346. The cubic root of 1165233103 is about 1052.2952369926.

Adding to 1165233103 its reverse (3013325611), we get a palindrome (4178558714).

The spelling of 1165233103 in words is "one billion, one hundred sixty-five million, two hundred thirty-three thousand, one hundred three".