20137203 has 6 divisors (see below), whose sum is σ = 29087084. Its totient is φ = 13424796.

The previous prime is 20137199. The next prime is 20137217. The reversal of 20137203 is 30273102.

It is not a de Polignac number, because 20137203 - 2² = 20137199 is a prime.

It is a Duffinian number.

It is a zygodrome in base 7.

It is not an unprimeable number, because it can be changed into a prime (20137253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1118725 + ... + 1118742.

Almost surely, 2^20137203 is an apocalyptic number.

20137203 is a deficient number, since it is larger than the sum of its proper divisors (8949881).

20137203 is a wasteful number, since it uses less digits than its factorization.

20137203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237473 (or 2237470 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 20137203 is about 4487.4494983231. The cubic root of 20137203 is about 272.0610580560.

It can be divided in two parts, 2013 and 7203, that added together give a square (9216 = 96²).

The spelling of 20137203 in words is "twenty million, one hundred thirty-seven thousand, two hundred three".