20343405103 has 8 divisors (see below), whose sum is σ = 23543905280. Its totient is φ = 17216479800.

The previous prime is 20343405097. The next prime is 20343405107. The reversal of 20343405103 is 30150434302.

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 20343405103 - 2²¹ = 20341307951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343405107) 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, 18393123 + ... + 18394228.

It is an arithmetic number, because the mean of its divisors is an integer number (2942988160).

Almost surely, 2^20343405103 is an apocalyptic number.

20343405103 is a deficient number, since it is larger than the sum of its proper divisors (3200500177).

20343405103 is an equidigital number, since it uses as much as digits as its factorization.

20343405103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36787437.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20343405103 its reverse (30150434302), we get a palindrome (50493839405).

The spelling of 20343405103 in words is "twenty billion, three hundred forty-three million, four hundred five thousand, one hundred three".