20013012103 has 32 divisors (see below), whose sum is σ = 24539074560. Its totient is φ = 15946761600.

The previous prime is 20013012101. The next prime is 20013012139. The reversal of 20013012103 is 30121031002.

It is not a de Polignac number, because 20013012103 - 2¹ = 20013012101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013012101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8511378 + ... + 8513728.

It is an arithmetic number, because the mean of its divisors is an integer number (766846080).

Almost surely, 2^20013012103 is an apocalyptic number.

20013012103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20013012103 is a deficient number, since it is larger than the sum of its proper divisors (4526062457).

20013012103 is a wasteful number, since it uses less digits than its factorization.

20013012103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3847.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20013012103 its reverse (30121031002), we get a palindrome (50134043105).

The spelling of 20013012103 in words is "twenty billion, thirteen million, twelve thousand, one hundred three".