1321132330 has 16 divisors (see below), whose sum is σ = 2717758080. Its totient is φ = 452959632.

The previous prime is 1321132321. The next prime is 1321132333. The reversal of 1321132330 is 332311231.

It is a junction number, because it is equal to n+sod(n) for n = 1321132298 and 1321132307.

It is not an unprimeable number, because it can be changed into a prime (1321132333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9436590 + ... + 9436729.

It is an arithmetic number, because the mean of its divisors is an integer number (169859880).

Almost surely, 2^1321132330 is an apocalyptic number.

1321132330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321132330 is an abundant number, since it is smaller than the sum of its proper divisors (1396625750).

1321132330 is a wasteful number, since it uses less digits than its factorization.

1321132330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18873333.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1321132330 is about 36347.3840874416. The cubic root of 1321132330 is about 1097.2748880610.

Adding to 1321132330 its reverse (332311231), we get a palindrome (1653443561).

The spelling of 1321132330 in words is "one billion, three hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty".