20301203203 has 4 divisors (see below), whose sum is σ = 20304303048. Its totient is φ = 20298103360.

The previous prime is 20301203173. The next prime is 20301203231. The reversal of 20301203203 is 30230210302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20301203203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20301203243) 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, 1540078 + ... + 1553203.

It is an arithmetic number, because the mean of its divisors is an integer number (5076075762).

Almost surely, 2^20301203203 is an apocalyptic number.

20301203203 is a deficient number, since it is larger than the sum of its proper divisors (3099845).

20301203203 is an equidigital number, since it uses as much as digits as its factorization.

20301203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099844.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 20301203203 its reverse (30230210302), we get a palindrome (50531413505).

The spelling of 20301203203 in words is "twenty billion, three hundred one million, two hundred three thousand, two hundred three".