231232321322 has 4 divisors (see below), whose sum is σ = 346848481986. Its totient is φ = 115616160660.

The previous prime is 231232321283. The next prime is 231232321349. The reversal of 231232321322 is 223123232132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 226044144481 + 5188176841 = 475441^2 + 72029^2 .

It is a junction number, because it is equal to n+sod(n) for n = 231232321291 and 231232321300.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57808080329 + ... + 57808080332.

Almost surely, 2^231232321322 is an apocalyptic number.

231232321322 is a deficient number, since it is larger than the sum of its proper divisors (115616160664).

231232321322 is a wasteful number, since it uses less digits than its factorization.

231232321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115616160663.

The product of its digits is 5184, while the sum is 26.

Adding to 231232321322 its reverse (223123232132), we get a palindrome (454355553454).

It can be divided in two parts, 23123232132 and 2, that multiplied together give a palindrome (46246464264).

The spelling of 231232321322 in words is "two hundred thirty-one billion, two hundred thirty-two million, three hundred twenty-one thousand, three hundred twenty-two".