1321424300 has 36 divisors (see below), whose sum is σ = 3277134000. Its totient is φ = 453059520.

The previous prime is 1321424281. The next prime is 1321424323. The reversal of 1321424300 is 34241231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 943175 + ... + 944574.

It is an arithmetic number, because the mean of its divisors is an integer number (91031500).

Almost surely, 2^1321424300 is an apocalyptic number.

1321424300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321424300 is an abundant number, since it is smaller than the sum of its proper divisors (1955709700).

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

1321424300 is a wasteful number, since it uses less digits than its factorization.

1321424300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887770 (or 1887763 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1321424300 is about 36351.4002481335. The cubic root of 1321424300 is about 1097.3557146227.

Adding to 1321424300 its reverse (34241231), we get a palindrome (1355665531).

The spelling of 1321424300 in words is "one billion, three hundred twenty-one million, four hundred twenty-four thousand, three hundred".