1001332131223 has 4 divisors (see below), whose sum is σ = 1054033822360. Its totient is φ = 948630440088.

The previous prime is 1001332131203. The next prime is 1001332131227. The reversal of 1001332131223 is 3221312331001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001332131223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001332131194 and 1001332131203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001332131227) 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 3 ways as a sum of consecutive naturals, for example, 26350845540 + ... + 26350845577.

It is an arithmetic number, because the mean of its divisors is an integer number (263508455590).

Almost surely, 2^{1001332131223} is an apocalyptic number.

1001332131223 is a deficient number, since it is larger than the sum of its proper divisors (52701691137).

1001332131223 is an equidigital number, since it uses as much as digits as its factorization.

1001332131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52701691136.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1001332131223 its reverse (3221312331001), we get a palindrome (4222644462224).

The spelling of 1001332131223 in words is "one trillion, one billion, three hundred thirty-two million, one hundred thirty-one thousand, two hundred twenty-three".