1321444254430 has 8 divisors (see below), whose sum is σ = 2378599657992. Its totient is φ = 528577701768.

The previous prime is 1321444254331. The next prime is 1321444254461. The reversal of 1321444254430 is 344524441231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1321444254430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66072212712 + ... + 66072212731.

It is an arithmetic number, because the mean of its divisors is an integer number (297324957249).

Almost surely, 2^{1321444254430} is an apocalyptic number.

1321444254430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321444254430 is a deficient number, since it is larger than the sum of its proper divisors (1057155403562).

1321444254430 is a wasteful number, since it uses less digits than its factorization.

1321444254430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132144425450.

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 1321444254430 its reverse (344524441231), we get a palindrome (1665968695661).

The spelling of 1321444254430 in words is "one trillion, three hundred twenty-one billion, four hundred forty-four million, two hundred fifty-four thousand, four hundred thirty".