20123321003 has 8 divisors (see below), whose sum is σ = 20148480000. Its totient is φ = 20098180648.

The previous prime is 20123320993. The next prime is 20123321041. The reversal of 20123321003 is 30012332102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20123321003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20123321083) 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, 3809318 + ... + 3814596.

It is an arithmetic number, because the mean of its divisors is an integer number (2518560000).

Almost surely, 2^20123321003 is an apocalyptic number.

20123321003 is a deficient number, since it is larger than the sum of its proper divisors (25158997).

20123321003 is a wasteful number, since it uses less digits than its factorization.

20123321003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9321.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20123321003 its reverse (30012332102), we get a palindrome (50135653105).

The spelling of 20123321003 in words is "twenty billion, one hundred twenty-three million, three hundred twenty-one thousand, three".