1320221432113 has 16 divisors (see below), whose sum is σ = 1380958416000. Its totient is φ = 1259763563520.

The previous prime is 1320221432107. The next prime is 1320221432171. The reversal of 1320221432113 is 3112341220231.

It is a cyclic number.

It is not a de Polignac number, because 1320221432113 - 2¹⁷ = 1320221301041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320221432513) 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 15 ways as a sum of consecutive naturals, for example, 75471298 + ... + 75488788.

It is an arithmetic number, because the mean of its divisors is an integer number (86309901000).

Almost surely, 2^{1320221432113} is an apocalyptic number.

It is an amenable number.

1320221432113 is a deficient number, since it is larger than the sum of its proper divisors (60736983887).

1320221432113 is a wasteful number, since it uses less digits than its factorization.

1320221432113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25272.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1320221432113 its reverse (3112341220231), we get a palindrome (4432562652344).

The spelling of 1320221432113 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, four hundred thirty-two thousand, one hundred thirteen".