20144212093 has 4 divisors (see below), whose sum is σ = 20145865180. Its totient is φ = 20142559008.

The previous prime is 20144212073. The next prime is 20144212139. The reversal of 20144212093 is 39021244102.

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 6088212729 + 14055999364 = 78027^2 + 118558^2 .

It is a cyclic number.

It is not a de Polignac number, because 20144212093 - 2²⁹ = 19607341181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144212043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 808128 + ... + 832681.

It is an arithmetic number, because the mean of its divisors is an integer number (5036466295).

Almost surely, 2^20144212093 is an apocalyptic number.

It is an amenable number.

20144212093 is a deficient number, since it is larger than the sum of its proper divisors (1653087).

20144212093 is a wasteful number, since it uses less digits than its factorization.

20144212093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1653086.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 20144212093 its reverse (39021244102), we get a palindrome (59165456195).

The spelling of 20144212093 in words is "twenty billion, one hundred forty-four million, two hundred twelve thousand, ninety-three".