20130045321343 has 4 divisors (see below), whose sum is σ = 20130548499280. Its totient is φ = 20129542143408.

The previous prime is 20130045321341. The next prime is 20130045321403. The reversal of 20130045321343 is 34312354003102.

It is a happy number.

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 20130045321343 - 2¹ = 20130045321341 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 (20130045321341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251528955 + ... + 251608972.

It is an arithmetic number, because the mean of its divisors is an integer number (5032637124820).

Almost surely, 2^{20130045321343} is an apocalyptic number.

20130045321343 is a deficient number, since it is larger than the sum of its proper divisors (503177937).

20130045321343 is an equidigital number, since it uses as much as digits as its factorization.

20130045321343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503177936.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 20130045321343 its reverse (34312354003102), we get a palindrome (54442399324445).

The spelling of 20130045321343 in words is "twenty trillion, one hundred thirty billion, forty-five million, three hundred twenty-one thousand, three hundred forty-three".