20130144343 has 4 divisors (see below), whose sum is σ = 20149632448. Its totient is φ = 20110656240.

The previous prime is 20130144299. The next prime is 20130144373. The reversal of 20130144343 is 34344103102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130144343 is a prime.

It is a super-2 number, since 2×20130144343² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130144373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9742503 + ... + 9744568.

It is an arithmetic number, because the mean of its divisors is an integer number (5037408112).

Almost surely, 2^20130144343 is an apocalyptic number.

20130144343 is a deficient number, since it is larger than the sum of its proper divisors (19488105).

20130144343 is a wasteful number, since it uses less digits than its factorization.

20130144343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19488104.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20130144343 its reverse (34344103102), we get a palindrome (54474247445).

The spelling of 20130144343 in words is "twenty billion, one hundred thirty million, one hundred forty-four thousand, three hundred forty-three".