20343123341 has 4 divisors (see below), whose sum is σ = 20346620352. Its totient is φ = 20339626332.

The previous prime is 20343123257. The next prime is 20343123347. The reversal of 20343123341 is 14332134302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20343123341 is a prime.

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 20343123341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343123347) 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, 1739765 + ... + 1751418.

It is an arithmetic number, because the mean of its divisors is an integer number (5086655088).

Almost surely, 2^20343123341 is an apocalyptic number.

It is an amenable number.

20343123341 is a deficient number, since it is larger than the sum of its proper divisors (3497011).

20343123341 is an equidigital number, since it uses as much as digits as its factorization.

20343123341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497010.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 20343123341 its reverse (14332134302), we get a palindrome (34675257643).

The spelling of 20343123341 in words is "twenty billion, three hundred forty-three million, one hundred twenty-three thousand, three hundred forty-one".