403231242321 has 24 divisors (see below), whose sum is σ = 584100781056. Its totient is φ = 268057009440.

The previous prime is 403231242209. The next prime is 403231242341. The reversal of 403231242321 is 123242132304.

403231242321 is a `hidden beast` number, since 4 + 0 + 3 + 231 + 2 + 423 + 2 + 1 = 666.

It is not a de Polignac number, because 403231242321 - 2¹⁰ = 403231241297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (403231242341) 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, 18647806 + ... + 18669416.

It is an arithmetic number, because the mean of its divisors is an integer number (24337532544).

Almost surely, 2^403231242321 is an apocalyptic number.

It is an amenable number.

403231242321 is a deficient number, since it is larger than the sum of its proper divisors (180869538735).

403231242321 is a wasteful number, since it uses less digits than its factorization.

403231242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27413 (or 27410 counting only the distinct ones).

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

Adding to 403231242321 its reverse (123242132304), we get a palindrome (526473374625).

The spelling of 403231242321 in words is "four hundred three billion, two hundred thirty-one million, two hundred forty-two thousand, three hundred twenty-one".