11523034045 has 4 divisors (see below), whose sum is σ = 13827640860. Its totient is φ = 9218427232.

The previous prime is 11523034043. The next prime is 11523034067. The reversal of 11523034045 is 54043032511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1802257209 + 9720776836 = 42453^2 + 98594^2 .

It is a cyclic number.

It is not a de Polignac number, because 11523034045 - 2¹ = 11523034043 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11523034043) 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, 1152303400 + ... + 1152303409.

It is an arithmetic number, because the mean of its divisors is an integer number (3456910215).

Almost surely, 2^11523034045 is an apocalyptic number.

It is an amenable number.

11523034045 is a deficient number, since it is larger than the sum of its proper divisors (2304606815).

11523034045 is an equidigital number, since it uses as much as digits as its factorization.

11523034045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304606814.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 11523034045 its reverse (54043032511), we get a palindrome (65566066556).

The spelling of 11523034045 in words is "eleven billion, five hundred twenty-three million, thirty-four thousand, forty-five".