1321302424 has 32 divisors (see below), whose sum is σ = 2824960320. Its totient is φ = 573958656.

The previous prime is 1321302421. The next prime is 1321302457. The reversal of 1321302424 is 4242031231.

It is a junction number, because it is equal to n+sod(n) for n = 1321302395 and 1321302404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321302421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371904 + ... + 375439.

It is an arithmetic number, because the mean of its divisors is an integer number (88280010).

Almost surely, 2^1321302424 is an apocalyptic number.

It is an amenable number.

1321302424 is an abundant number, since it is smaller than the sum of its proper divisors (1503657896).

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

1321302424 is a wasteful number, since it uses less digits than its factorization.

1321302424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 747379 (or 747375 counting only the distinct ones).

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

The square root of 1321302424 is about 36349.7238503953. The cubic root of 1321302424 is about 1097.3219769260.

Adding to 1321302424 its reverse (4242031231), we get a palindrome (5563333655).

The spelling of 1321302424 in words is "one billion, three hundred twenty-one million, three hundred two thousand, four hundred twenty-four".