20123221143003 has 16 divisors (see below), whose sum is σ = 29273096600832. Its totient is φ = 12194659620000.

The previous prime is 20123221142963. The next prime is 20123221143007. The reversal of 20123221143003 is 30034112232102.

It is not a de Polignac number, because 20123221143003 - 2¹² = 20123221138907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20123221143007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30467863 + ... + 31121328.

It is an arithmetic number, because the mean of its divisors is an integer number (1829568537552).

Almost surely, 2^{20123221143003} is an apocalyptic number.

20123221143003 is a deficient number, since it is larger than the sum of its proper divisors (9149875457829).

20123221143003 is a wasteful number, since it uses less digits than its factorization.

20123221143003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61599106.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20123221143003 its reverse (30034112232102), we get a palindrome (50157333375105).

The spelling of 20123221143003 in words is "twenty trillion, one hundred twenty-three billion, two hundred twenty-one million, one hundred forty-three thousand, three".