1230131322 has 96 divisors (see below), whose sum is σ = 3269814912. Its totient is φ = 326218752.

The previous prime is 1230131321. The next prime is 1230131347. The reversal of 1230131322 is 2231310321.

1230131322 is a `hidden beast` number, since 12 + 301 + 31 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1230131295 and 1230131304.

It is not an unprimeable number, because it can be changed into a prime (1230131321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152433 + ... + 160299.

It is an arithmetic number, because the mean of its divisors is an integer number (34060572).

Almost surely, 2^1230131322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230131322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634907456).

1230131322 is an abundant number, since it is smaller than the sum of its proper divisors (2039683590).

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

1230131322 is a wasteful number, since it uses less digits than its factorization.

1230131322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7972 (or 7969 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230131322 is about 35073.2279951532. The cubic root of 1230131322 is about 1071.4793994478.

Adding to 1230131322 its reverse (2231310321), we get a palindrome (3461441643).

The spelling of 1230131322 in words is "one billion, two hundred thirty million, one hundred thirty-one thousand, three hundred twenty-two".