4430231304021 has 24 divisors (see below), whose sum is σ = 6779212576344. Its totient is φ = 2778290534400.

The previous prime is 4430231304013. The next prime is 4430231304043. The reversal of 4430231304021 is 1204031320344.

4430231304021 is a `hidden beast` number, since 4 + 4 + 302 + 31 + 304 + 0 + 21 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1024324143921 + 3405907160100 = 1012089^2 + 1845510^2 .

It is not a de Polignac number, because 4430231304021 - 2³ = 4430231304013 is a prime.

It is a super-2 number, since 2×4430231304021² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4430231300021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7325076 + ... + 7906781.

It is an arithmetic number, because the mean of its divisors is an integer number (282467190681).

Almost surely, 2^{4430231304021} is an apocalyptic number.

It is an amenable number.

4430231304021 is a deficient number, since it is larger than the sum of its proper divisors (2348981272323).

4430231304021 is a wasteful number, since it uses less digits than its factorization.

4430231304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15233781 (or 15233778 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 4430231304021 its reverse (1204031320344), we get a palindrome (5634262624365).

The spelling of 4430231304021 in words is "four trillion, four hundred thirty billion, two hundred thirty-one million, three hundred four thousand, twenty-one".