1231323122 has 8 divisors (see below), whose sum is σ = 1910673900. Its totient is φ = 594431824.

The previous prime is 1231323089. The next prime is 1231323167. The reversal of 1231323122 is 2213231321.

It can be written as a sum of positive squares in 2 ways, for example, as 1197229201 + 34093921 = 34601^2 + 5839^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1231323094 and 1231323103.

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, 10614797 + ... + 10614912.

Almost surely, 2^1231323122 is an apocalyptic number.

1231323122 is a deficient number, since it is larger than the sum of its proper divisors (679350778).

1231323122 is a wasteful number, since it uses less digits than its factorization.

1231323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21229740.

The product of its digits is 432, while the sum is 20.

The square root of 1231323122 is about 35090.2140489339. The cubic root of 1231323122 is about 1071.8253183341.

Adding to 1231323122 its reverse (2213231321), we get a palindrome (3444554443).

The spelling of 1231323122 in words is "one billion, two hundred thirty-one million, three hundred twenty-three thousand, one hundred twenty-two".