1323122136 has 32 divisors (see below), whose sum is σ = 3780349440. Its totient is φ = 378034848.

The previous prime is 1323122123. The next prime is 1323122137. The reversal of 1323122136 is 6312213231.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323122137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3937696 + ... + 3938031.

It is an arithmetic number, because the mean of its divisors is an integer number (118135920).

Almost surely, 2^1323122136 is an apocalyptic number.

It is an amenable number.

1323122136 is an abundant number, since it is smaller than the sum of its proper divisors (2457227304).

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

1323122136 is a wasteful number, since it uses less digits than its factorization.

1323122136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875743 (or 7875739 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 1323122136 is about 36374.7458547823. The cubic root of 1323122136 is about 1097.8254937484.

Adding to 1323122136 its reverse (6312213231), we get a palindrome (7635335367).

The spelling of 1323122136 in words is "one billion, three hundred twenty-three million, one hundred twenty-two thousand, one hundred thirty-six".