11124043465 has 4 divisors (see below), whose sum is σ = 13348852164. Its totient is φ = 8899234768.

The previous prime is 11124043421. The next prime is 11124043477. The reversal of 11124043465 is 56434042111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56434042111 = 2693 ⋅20955827.

It can be written as a sum of positive squares in 2 ways, for example, as 6984279184 + 4139764281 = 83572^2 + 64341^2 .

It is a cyclic number.

It is not a de Polignac number, because 11124043465 - 2⁹ = 11124042953 is a prime.

It is a super-2 number, since 2×11124043465² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112404342 + ... + 1112404351.

It is an arithmetic number, because the mean of its divisors is an integer number (3337213041).

Almost surely, 2^11124043465 is an apocalyptic number.

It is an amenable number.

11124043465 is a deficient number, since it is larger than the sum of its proper divisors (2224808699).

11124043465 is an equidigital number, since it uses as much as digits as its factorization.

11124043465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224808698.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 11124043465 its reverse (56434042111), we get a palindrome (67558085576).

The spelling of 11124043465 in words is "eleven billion, one hundred twenty-four million, forty-three thousand, four hundred sixty-five".