20013000103 has 4 divisors (see below), whose sum is σ = 20016164560. Its totient is φ = 20009835648.

The previous prime is 20013000061. The next prime is 20013000107. The reversal of 20013000103 is 30100031002.

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 20013000103 - 2¹⁷ = 20012869031 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 20013000103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013000107) 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, 1572723 + ... + 1585396.

It is an arithmetic number, because the mean of its divisors is an integer number (5004041140).

Almost surely, 2^20013000103 is an apocalyptic number.

20013000103 is a deficient number, since it is larger than the sum of its proper divisors (3164457).

20013000103 is an equidigital number, since it uses as much as digits as its factorization.

20013000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3164456.

The product of its (nonzero) digits is 18, while the sum is 10.

Adding to 20013000103 its reverse (30100031002), we get a palindrome (50113031105).

The spelling of 20013000103 in words is "twenty billion, thirteen million, one hundred three", and thus it is an aban number.