1321303030 has 16 divisors (see below), whose sum is σ = 2379059424. Its totient is φ = 528362560.

The previous prime is 1321303021. The next prime is 1321303033. The reversal of 1321303030 is 303031231.

It is a junction number, because it is equal to n+sod(n) for n = 1321302995 and 1321303013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321303033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18714 + ... + 54706.

It is an arithmetic number, because the mean of its divisors is an integer number (148691214).

Almost surely, 2^1321303030 is an apocalyptic number.

1321303030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321303030 is a deficient number, since it is larger than the sum of its proper divisors (1057756394).

1321303030 is a wasteful number, since it uses less digits than its factorization.

1321303030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39671.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1321303030 is about 36349.7321860836. The cubic root of 1321303030 is about 1097.3221446839.

Adding to 1321303030 its reverse (303031231), we get a palindrome (1624334261).

The spelling of 1321303030 in words is "one billion, three hundred twenty-one million, three hundred three thousand, thirty".