1321423132330 has 128 divisors (see below), whose sum is σ = 2915949238272. Its totient is φ = 420849451008.

The previous prime is 1321423132301. The next prime is 1321423132331. The reversal of 1321423132330 is 332313241231.

It is not an unprimeable number, because it can be changed into a prime (1321423132331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42347214 + ... + 42378406.

It is an arithmetic number, because the mean of its divisors is an integer number (22780853424).

Almost surely, 2^{1321423132330} is an apocalyptic number.

1321423132330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321423132330 is an abundant number, since it is smaller than the sum of its proper divisors (1594526105942).

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

1321423132330 is a wasteful number, since it uses less digits than its factorization.

1321423132330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31688.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 1321423132330 its reverse (332313241231), we get a palindrome (1653736373561).

The spelling of 1321423132330 in words is "one trillion, three hundred twenty-one billion, four hundred twenty-three million, one hundred thirty-two thousand, three hundred thirty".