231302320422 has 32 divisors (see below), whose sum is σ = 486991017600. Its totient is φ = 73037023488.

The previous prime is 231302320397. The next prime is 231302320423. The reversal of 231302320422 is 224023203132.

231302320422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 231302320392 and 231302320401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231302320423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1491213 + ... + 1638999.

It is an arithmetic number, because the mean of its divisors is an integer number (15218469300).

Almost surely, 2^231302320422 is an apocalyptic number.

231302320422 is an abundant number, since it is smaller than the sum of its proper divisors (255688697178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231302320422 is a wasteful number, since it uses less digits than its factorization.

231302320422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161540.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 231302320422 its reverse (224023203132), we get a palindrome (455325523554).

The spelling of 231302320422 in words is "two hundred thirty-one billion, three hundred two million, three hundred twenty thousand, four hundred twenty-two".