20130120203 has 8 divisors (see below), whose sum is σ = 20213097696. Its totient is φ = 20047192000.

The previous prime is 20130120173. The next prime is 20130120229. The reversal of 20130120203 is 30202103102.

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 20130120203 - 2¹² = 20130116107 is a prime.

It is a super-2 number, since 2×20130120203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130125203) 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 7 ways as a sum of consecutive naturals, for example, 963023 + ... + 983703.

It is an arithmetic number, because the mean of its divisors is an integer number (2526637212).

Almost surely, 2^20130120203 is an apocalyptic number.

20130120203 is a deficient number, since it is larger than the sum of its proper divisors (82977493).

20130120203 is a wasteful number, since it uses less digits than its factorization.

20130120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24645.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20130120203 its reverse (30202103102), we get a palindrome (50332223305).

The spelling of 20130120203 in words is "twenty billion, one hundred thirty million, one hundred twenty thousand, two hundred three".