1232143122 has 64 divisors (see below), whose sum is σ = 3025152000. Its totient is φ = 333501840.

The previous prime is 1232143093. The next prime is 1232143139. The reversal of 1232143122 is 2213412321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23347 + ... + 54857.

It is an arithmetic number, because the mean of its divisors is an integer number (47268000).

Almost surely, 2^1232143122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232143122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512576000).

1232143122 is an abundant number, since it is smaller than the sum of its proper divisors (1793008878).

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

1232143122 is a wasteful number, since it uses less digits than its factorization.

1232143122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31556 (or 31542 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 1232143122 is about 35101.8962735633. The cubic root of 1232143122 is about 1072.0631930010.

Adding to 1232143122 its reverse (2213412321), we get a palindrome (3445555443).

The spelling of 1232143122 in words is "one billion, two hundred thirty-two million, one hundred forty-three thousand, one hundred twenty-two".