1323124420 has 24 divisors (see below), whose sum is σ = 2874375000. Its totient is φ = 510999552.

The previous prime is 1323124409. The next prime is 1323124457. The reversal of 1323124420 is 244213231.

It can be written as a sum of positive squares in 4 ways, for example, as 98684356 + 1224440064 = 9934^2 + 34992^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1323124391 and 1323124400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1140045 + ... + 1141204.

It is an arithmetic number, because the mean of its divisors is an integer number (119765625).

Almost surely, 2^1323124420 is an apocalyptic number.

1323124420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323124420 is an abundant number, since it is smaller than the sum of its proper divisors (1551250580).

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

1323124420 is a wasteful number, since it uses less digits than its factorization.

1323124420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281287 (or 2281285 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1323124420 is about 36374.7772501771. Note that the first 3 decimals coincide. The cubic root of 1323124420 is about 1097.8261254441.

Adding to 1323124420 its reverse (244213231), we get a palindrome (1567337651).

The spelling of 1323124420 in words is "one billion, three hundred twenty-three million, one hundred twenty-four thousand, four hundred twenty".