20013102403 has 8 divisors (see below), whose sum is σ = 22921097472. Its totient is φ = 17117352456.

The previous prime is 20013102377. The next prime is 20013102451. The reversal of 20013102403 is 30420131002.

It is a happy number.

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 20013102403 - 2²⁹ = 19476231491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20013102463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3057775 + ... + 3064312.

It is an arithmetic number, because the mean of its divisors is an integer number (2865137184).

Almost surely, 2^20013102403 is an apocalyptic number.

20013102403 is a deficient number, since it is larger than the sum of its proper divisors (2907995069).

20013102403 is an equidigital number, since it uses as much as digits as its factorization.

20013102403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6122561.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20013102403 its reverse (30420131002), we get a palindrome (50433233405).

The spelling of 20013102403 in words is "twenty billion, thirteen million, one hundred two thousand, four hundred three".