4501123421 has 8 divisors (see below), whose sum is σ = 4587128064. Its totient is φ = 4415158800.

The previous prime is 4501123409. The next prime is 4501123433. The reversal of 4501123421 is 1243211054.

It is an interprime number because it is at equal distance from previous prime (4501123409) and next prime (4501123433).

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 4501123421 - 2¹⁰ = 4501122397 is a prime.

It is a super-2 number, since 2×4501123421² = 40520224102149486482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4501123441) 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, 319100 + ... + 332906.

It is an arithmetic number, because the mean of its divisors is an integer number (573391008).

Almost surely, 2^4501123421 is an apocalyptic number.

It is an amenable number.

4501123421 is a deficient number, since it is larger than the sum of its proper divisors (86004643).

4501123421 is a wasteful number, since it uses less digits than its factorization.

4501123421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20011.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 4501123421 is about 67090.4122881951. The cubic root of 4501123421 is about 1651.1010002165.

Adding to 4501123421 its reverse (1243211054), we get a palindrome (5744334475).

The spelling of 4501123421 in words is "four billion, five hundred one million, one hundred twenty-three thousand, four hundred twenty-one".