4405312523 has 2 divisors, whose sum is σ = 4405312524. Its totient is φ = 4405312522.

The previous prime is 4405312519. The next prime is 4405312543. The reversal of 4405312523 is 3252135044.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4405312523 - 2² = 4405312519 is a prime.

It is not a weakly prime, because it can be changed into another prime (4405312543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2202656261 + 2202656262.

It is an arithmetic number, because the mean of its divisors is an integer number (2202656262).

Almost surely, 2^4405312523 is an apocalyptic number.

4405312523 is a deficient number, since it is larger than the sum of its proper divisors (1).

4405312523 is an equidigital number, since it uses as much as digits as its factorization.

4405312523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 4405312523 is about 66372.5283758273. The cubic root of 4405312523 is about 1639.3017703648.

Adding to 4405312523 its reverse (3252135044), we get a palindrome (7657447567).

The spelling of 4405312523 in words is "four billion, four hundred five million, three hundred twelve thousand, five hundred twenty-three".