20413344103 has 4 divisors (see below), whose sum is σ = 20488670368. Its totient is φ = 20338017840.

The previous prime is 20413344053. The next prime is 20413344131. The reversal of 20413344103 is 30144331402.

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 20413344103 - 2⁹ = 20413343591 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 (20413344143) 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, 37662726 + ... + 37663267.

It is an arithmetic number, because the mean of its divisors is an integer number (5122167592).

Almost surely, 2^20413344103 is an apocalyptic number.

20413344103 is a deficient number, since it is larger than the sum of its proper divisors (75326265).

20413344103 is an equidigital number, since it uses as much as digits as its factorization.

20413344103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75326264.

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

Adding to 20413344103 its reverse (30144331402), we get a palindrome (50557675505).

The spelling of 20413344103 in words is "twenty billion, four hundred thirteen million, three hundred forty-four thousand, one hundred three".