1321444202330 has 16 divisors (see below), whose sum is σ = 2718399502080. Its totient is φ = 453066583632.

The previous prime is 1321444202237. The next prime is 1321444202333. The reversal of 1321444202330 is 332024441231.

It is a junction number, because it is equal to n+sod(n) for n = 1321444202293 and 1321444202302.

It is not an unprimeable number, because it can be changed into a prime (1321444202333) 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, 9438887090 + ... + 9438887229.

It is an arithmetic number, because the mean of its divisors is an integer number (169899968880).

Almost surely, 2^{1321444202330} is an apocalyptic number.

1321444202330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321444202330 is an abundant number, since it is smaller than the sum of its proper divisors (1396955299750).

1321444202330 is a wasteful number, since it uses less digits than its factorization.

1321444202330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18877774333.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 1321444202330 its reverse (332024441231), we get a palindrome (1653468643561).

The spelling of 1321444202330 in words is "one trillion, three hundred twenty-one billion, four hundred forty-four million, two hundred two thousand, three hundred thirty".