1001132321203 has 16 divisors (see below), whose sum is σ = 1151812105216. Its totient is φ = 852373627200.

The previous prime is 1001132321179. The next prime is 1001132321207. The reversal of 1001132321203 is 3021232311001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001132321203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001132321207) 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, 1811350 + ... + 2298532.

It is an arithmetic number, because the mean of its divisors is an integer number (71988256576).

Almost surely, 2^{1001132321203} is an apocalyptic number.

1001132321203 is a deficient number, since it is larger than the sum of its proper divisors (150679784013).

1001132321203 is a wasteful number, since it uses less digits than its factorization.

1001132321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489154.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1001132321203 its reverse (3021232311001), we get a palindrome (4022364632204).

The spelling of 1001132321203 in words is "one trillion, one billion, one hundred thirty-two million, three hundred twenty-one thousand, two hundred three".