1324212140 has 12 divisors (see below), whose sum is σ = 2780845536. Its totient is φ = 529684848.

The previous prime is 1324212121. The next prime is 1324212173. The reversal of 1324212140 is 412124231.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 66210607 = 1324212140 / (1 + 3 + 2 + 4 + 2 + 1 + 2 + 1 + 4 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33105284 + ... + 33105323.

It is an arithmetic number, because the mean of its divisors is an integer number (231737128).

Almost surely, 2^1324212140 is an apocalyptic number.

1324212140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324212140 is an abundant number, since it is smaller than the sum of its proper divisors (1456633396).

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

1324212140 is a wasteful number, since it uses less digits than its factorization.

1324212140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66210616 (or 66210614 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1324212140 is about 36389.7257477986. The cubic root of 1324212140 is about 1098.1268783035.

Adding to 1324212140 its reverse (412124231), we get a palindrome (1736336371).

The spelling of 1324212140 in words is "one billion, three hundred twenty-four million, two hundred twelve thousand, one hundred forty".