20413021103 has 4 divisors (see below), whose sum is σ = 20887742568. Its totient is φ = 19938299640.

The previous prime is 20413021093. The next prime is 20413021117. The reversal of 20413021103 is 30112031402.

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 20413021103 - 2⁶ = 20413021039 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 (20413021183) 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, 237360668 + ... + 237360753.

It is an arithmetic number, because the mean of its divisors is an integer number (5221935642).

Almost surely, 2^20413021103 is an apocalyptic number.

20413021103 is a deficient number, since it is larger than the sum of its proper divisors (474721465).

20413021103 is an equidigital number, since it uses as much as digits as its factorization.

20413021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474721464.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20413021103 its reverse (30112031402), we get a palindrome (50525052505).

The spelling of 20413021103 in words is "twenty billion, four hundred thirteen million, twenty-one thousand, one hundred three".