231223212322 has 8 divisors (see below), whose sum is σ = 358794639900. Its totient is φ = 111624999024.

The previous prime is 231223212317. The next prime is 231223212343. The reversal of 231223212322 is 223212322132.

It can be written as a sum of positive squares in 2 ways, for example, as 202617917161 + 28605295161 = 450131^2 + 169131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1993303497 + ... + 1993303612.

Almost surely, 2^231223212322 is an apocalyptic number.

231223212322 is a deficient number, since it is larger than the sum of its proper divisors (127571427578).

231223212322 is a wasteful number, since it uses less digits than its factorization.

231223212322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3986607140.

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

Adding to 231223212322 its reverse (223212322132), we get a palindrome (454435534454).

The spelling of 231223212322 in words is "two hundred thirty-one billion, two hundred twenty-three million, two hundred twelve thousand, three hundred twenty-two".