1123361465 has 4 divisors (see below), whose sum is σ = 1348033764. Its totient is φ = 898689168.

The previous prime is 1123361461. The next prime is 1123361467. The reversal of 1123361465 is 5641633211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5641633211 = 397 ⋅14210663.

It can be written as a sum of positive squares in 2 ways, for example, as 302481664 + 820879801 = 17392^2 + 28651^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123361465 - 2² = 1123361461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123361461) 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, 112336142 + ... + 112336151.

It is an arithmetic number, because the mean of its divisors is an integer number (337008441).

Almost surely, 2^1123361465 is an apocalyptic number.

It is an amenable number.

1123361465 is a deficient number, since it is larger than the sum of its proper divisors (224672299).

1123361465 is an equidigital number, since it uses as much as digits as its factorization.

1123361465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224672298.

The product of its digits is 12960, while the sum is 32.

The square root of 1123361465 is about 33516.5849244818. The cubic root of 1123361465 is about 1039.5367343135.

Adding to 1123361465 its reverse (5641633211), we get a palindrome (6764994676).

The spelling of 1123361465 in words is "one billion, one hundred twenty-three million, three hundred sixty-one thousand, four hundred sixty-five".