20144221302983 has 4 divisors (see below), whose sum is σ = 20144262492000. Its totient is φ = 20144180113968.

The previous prime is 20144221302943. The next prime is 20144221303057. The reversal of 20144221302983 is 38920312244102.

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

It is a cyclic number.

It is not a de Polignac number, because 20144221302983 - 2⁸ = 20144221302727 is a prime.

It is a super-2 number, since 2×20144221302983² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20144221302983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144221302943) 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, 19851983 + ... + 20842016.

It is an arithmetic number, because the mean of its divisors is an integer number (5036065623000).

Almost surely, 2^{20144221302983} is an apocalyptic number.

20144221302983 is a deficient number, since it is larger than the sum of its proper divisors (41189017).

20144221302983 is an equidigital number, since it uses as much as digits as its factorization.

20144221302983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41189016.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 20144221302983 in words is "twenty trillion, one hundred forty-four billion, two hundred twenty-one million, three hundred two thousand, nine hundred eighty-three".