7423321231 has 8 divisors (see below), whose sum is σ = 7749126144. Its totient is φ = 7097770680.

The previous prime is 7423321219. The next prime is 7423321237. The reversal of 7423321231 is 1321233247.

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 7423321231 - 2¹⁹ = 7422796943 is a prime.

It is a super-2 number, since 2×7423321231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7423321231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7423321237) 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, 2691 + ... + 121876.

It is an arithmetic number, because the mean of its divisors is an integer number (968640768).

Almost surely, 2^7423321231 is an apocalyptic number.

7423321231 is a deficient number, since it is larger than the sum of its proper divisors (325804913).

7423321231 is a wasteful number, since it uses less digits than its factorization.

7423321231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127181.

The product of its digits is 6048, while the sum is 28.

The square root of 7423321231 is about 86158.6979416472. The cubic root of 7423321231 is about 1950.7401293898.

Adding to 7423321231 its reverse (1321233247), we get a palindrome (8744554478).

The spelling of 7423321231 in words is "seven billion, four hundred twenty-three million, three hundred twenty-one thousand, two hundred thirty-one".