20030144105 has 4 divisors (see below), whose sum is σ = 24036172932. Its totient is φ = 16024115280.

The previous prime is 20030144041. The next prime is 20030144119. The reversal of 20030144105 is 50144103002.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3242277481 + 16787866624 = 56941^2 + 129568^2 .

It is not a de Polignac number, because 20030144105 - 2⁶ = 20030144041 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003014406 + ... + 2003014415.

It is an arithmetic number, because the mean of its divisors is an integer number (6009043233).

Almost surely, 2^20030144105 is an apocalyptic number.

It is an amenable number.

20030144105 is a deficient number, since it is larger than the sum of its proper divisors (4006028827).

20030144105 is an equidigital number, since it uses as much as digits as its factorization.

20030144105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006028826.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20030144105 its reverse (50144103002), we get a palindrome (70174247107).

The spelling of 20030144105 in words is "twenty billion, thirty million, one hundred forty-four thousand, one hundred five".