1321220132003 has 2 divisors, whose sum is σ = 1321220132004. Its totient is φ = 1321220132002.

The previous prime is 1321220131997. The next prime is 1321220132009. The reversal of 1321220132003 is 3002310221231.

It is a balanced prime because it is at equal distance from previous prime (1321220131997) and next prime (1321220132009).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321220132003 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321220132009) 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 as a sum of consecutive naturals, namely, 660610066001 + 660610066002.

It is an arithmetic number, because the mean of its divisors is an integer number (660610066002).

Almost surely, 2^{1321220132003} is an apocalyptic number.

1321220132003 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321220132003 is an equidigital number, since it uses as much as digits as its factorization.

1321220132003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1321220132003 its reverse (3002310221231), we get a palindrome (4323530353234).

The spelling of 1321220132003 in words is "one trillion, three hundred twenty-one billion, two hundred twenty million, one hundred thirty-two thousand, three".