4040011523 has 4 divisors (see below), whose sum is σ = 4040675328. Its totient is φ = 4039347720.

The previous prime is 4040011501. The next prime is 4040011559. The reversal of 4040011523 is 3251100404.

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

It is a cyclic number.

It is not a de Polignac number, because 4040011523 - 2¹² = 4040007427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4040011495 and 4040011504.

It is not an unprimeable number, because it can be changed into a prime (4040011583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322688 + ... + 334973.

It is an arithmetic number, because the mean of its divisors is an integer number (1010168832).

Almost surely, 2^4040011523 is an apocalyptic number.

4040011523 is a deficient number, since it is larger than the sum of its proper divisors (663805).

4040011523 is an equidigital number, since it uses as much as digits as its factorization.

4040011523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663804.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4040011523 is about 63561.0849734332. The cubic root of 4040011523 is about 1592.6763625802.

Adding to 4040011523 its reverse (3251100404), we get a palindrome (7291111927).

The spelling of 4040011523 in words is "four billion, forty million, eleven thousand, five hundred twenty-three".