20003012321123 has 8 divisors (see below), whose sum is σ = 21541780731408. Its totient is φ = 18464254647264.

The previous prime is 20003012321023. The next prime is 20003012321161. The reversal of 20003012321123 is 32112321030002.

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 20003012321123 - 2¹⁰ = 20003012320099 is a prime.

It is a super-2 number, since 2×20003012321123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003012321095 and 20003012321104.

It is not an unprimeable number, because it can be changed into a prime (20003012321023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1417565 + ... + 6481937.

It is an arithmetic number, because the mean of its divisors is an integer number (2692722591426).

Almost surely, 2^{20003012321123} is an apocalyptic number.

20003012321123 is a deficient number, since it is larger than the sum of its proper divisors (1538768410285).

20003012321123 is a wasteful number, since it uses less digits than its factorization.

20003012321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5368213.

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

Adding to 20003012321123 its reverse (32112321030002), we get a palindrome (52115333351125).

The spelling of 20003012321123 in words is "twenty trillion, three billion, twelve million, three hundred twenty-one thousand, one hundred twenty-three".