1320221011203 has 32 divisors (see below), whose sum is σ = 1997636736000. Its totient is φ = 861360762528.

The previous prime is 1320221011189. The next prime is 1320221011243. The reversal of 1320221011203 is 3021101220231.

1320221011203 is a `hidden beast` number, since 1 + 320 + 221 + 0 + 1 + 120 + 3 = 666.

It is not a de Polignac number, because 1320221011203 - 2⁵ = 1320221011171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1320221011243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24971625 + ... + 25024437.

It is an arithmetic number, because the mean of its divisors is an integer number (62426148000).

Almost surely, 2^{1320221011203} is an apocalyptic number.

1320221011203 is a deficient number, since it is larger than the sum of its proper divisors (677415724797).

1320221011203 is a wasteful number, since it uses less digits than its factorization.

1320221011203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72568 (or 72562 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1320221011203 its reverse (3021101220231), we get a palindrome (4341322231434).

The spelling of 1320221011203 in words is "one trillion, three hundred twenty billion, two hundred twenty-one million, eleven thousand, two hundred three".