20144120243 has 8 divisors (see below), whose sum is σ = 21698821200. Its totient is φ = 18590155488.

The previous prime is 20144120239. The next prime is 20144120251. The reversal of 20144120243 is 34202144102.

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 20144120243 - 2² = 20144120239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20144123243) 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, 126548 + ... + 237281.

It is an arithmetic number, because the mean of its divisors is an integer number (2712352650).

Almost surely, 2^20144120243 is an apocalyptic number.

20144120243 is a deficient number, since it is larger than the sum of its proper divisors (1554700957).

20144120243 is a wasteful number, since it uses less digits than its factorization.

20144120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368101.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 20144120243 its reverse (34202144102), we get a palindrome (54346264345).

The spelling of 20144120243 in words is "twenty billion, one hundred forty-four million, one hundred twenty thousand, two hundred forty-three".