4523403112721 has 8 divisors (see below), whose sum is σ = 4528235212800. Its totient is φ = 4518571738032.

The previous prime is 4523403112717. The next prime is 4523403112759. The reversal of 4523403112721 is 1272113043254.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4523403112721 - 2² = 4523403112717 is a prime.

It is a super-2 number, since 2×4523403112721² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4523403112021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12790946 + ... + 13139828.

It is an arithmetic number, because the mean of its divisors is an integer number (566029401600).

Almost surely, 2^{4523403112721} is an apocalyptic number.

It is an amenable number.

4523403112721 is a deficient number, since it is larger than the sum of its proper divisors (4832100079).

4523403112721 is a wasteful number, since it uses less digits than its factorization.

4523403112721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362695.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 4523403112721 its reverse (1272113043254), we get a palindrome (5795516155975).

The spelling of 4523403112721 in words is "four trillion, five hundred twenty-three billion, four hundred three million, one hundred twelve thousand, seven hundred twenty-one".