231302422132 has 24 divisors (see below), whose sum is σ = 413311370472. Its totient is φ = 113222928000.

The previous prime is 231302422111. The next prime is 231302422133. The reversal of 231302422132 is 231224203132.

It can be written as a sum of positive squares in 4 ways, for example, as 91661195536 + 139641226596 = 302756^2 + 373686^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231302422097 and 231302422106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231302422133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1085619 + ... + 1281082.

It is an arithmetic number, because the mean of its divisors is an integer number (17221307103).

Almost surely, 2^231302422132 is an apocalyptic number.

It is an amenable number.

231302422132 is a deficient number, since it is larger than the sum of its proper divisors (182008948340).

231302422132 is a wasteful number, since it uses less digits than its factorization.

231302422132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367219 (or 2367217 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 231302422132 its reverse (231224203132), we get a palindrome (462526625264).

The spelling of 231302422132 in words is "two hundred thirty-one billion, three hundred two million, four hundred twenty-two thousand, one hundred thirty-two".