1323112122 has 48 divisors (see below), whose sum is σ = 3033583488. Its totient is φ = 415910880.

The previous prime is 1323112121. The next prime is 1323112123. The reversal of 1323112122 is 2212113231.

It is an interprime number because it is at equal distance from previous prime (1323112121) and next prime (1323112123).

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

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

It is a junction number, because it is equal to n+sod(n) for n = 1323112095 and 1323112104.

It is not an unprimeable number, because it can be changed into a prime (1323112121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6888 + ... + 51900.

It is an arithmetic number, because the mean of its divisors is an integer number (63199656).

Almost surely, 2^1323112122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1323112122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516791744).

1323112122 is an abundant number, since it is smaller than the sum of its proper divisors (1710471366).

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

1323112122 is a wasteful number, since it uses less digits than its factorization.

1323112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45115 (or 45112 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1323112122 is about 36374.6082040755. The cubic root of 1323112122 is about 1097.8227241244.

Adding to 1323112122 its reverse (2212113231), we get a palindrome (3535225353).

The spelling of 1323112122 in words is "one billion, three hundred twenty-three million, one hundred twelve thousand, one hundred twenty-two".