20321123011003 has 8 divisors (see below), whose sum is σ = 20341192140000. Its totient is φ = 20301054579840.

The previous prime is 20321123010977. The next prime is 20321123011019. The reversal of 20321123011003 is 30011032112302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20321123011003 - 2⁵ = 20321123010971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321123011303) 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 in 7 ways as a sum of consecutive naturals, for example, 73319401 + ... + 73596037.

It is an arithmetic number, because the mean of its divisors is an integer number (2542649017500).

Almost surely, 2^{20321123011003} is an apocalyptic number.

20321123011003 is a deficient number, since it is larger than the sum of its proper divisors (20069128997).

20321123011003 is a wasteful number, since it uses less digits than its factorization.

20321123011003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348917.

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

Adding to 20321123011003 its reverse (30011032112302), we get a palindrome (50332155123305).

The spelling of 20321123011003 in words is "twenty trillion, three hundred twenty-one billion, one hundred twenty-three million, eleven thousand, three".