11345143265 has 4 divisors (see below), whose sum is σ = 13614171924. Its totient is φ = 9076114608.

The previous prime is 11345143237. The next prime is 11345143267. The reversal of 11345143265 is 56234154311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56234154311 = 107119 ⋅524969.

It can be written as a sum of positive squares in 2 ways, for example, as 5380515904 + 5964627361 = 73352^2 + 77231^2 .

It is a cyclic number.

It is not a de Polignac number, because 11345143265 - 2²⁶ = 11278034401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11345143267) 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, 1134514322 + ... + 1134514331.

It is an arithmetic number, because the mean of its divisors is an integer number (3403542981).

Almost surely, 2^11345143265 is an apocalyptic number.

It is an amenable number.

11345143265 is a deficient number, since it is larger than the sum of its proper divisors (2269028659).

11345143265 is an equidigital number, since it uses as much as digits as its factorization.

11345143265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269028658.

The product of its digits is 43200, while the sum is 35.

Adding to 11345143265 its reverse (56234154311), we get a palindrome (67579297576).

The spelling of 11345143265 in words is "eleven billion, three hundred forty-five million, one hundred forty-three thousand, two hundred sixty-five".