20031703 has 2 divisors, whose sum is σ = 20031704. Its totient is φ = 20031702.

The previous prime is 20031701. The next prime is 20031731. The reversal of 20031703 is 30713002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20031703 - 2¹ = 20031701 is a prime.

Together with 20031701, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20031701) 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 as a sum of consecutive naturals, namely, 10015851 + 10015852.

It is an arithmetic number, because the mean of its divisors is an integer number (10015852).

Almost surely, 2^20031703 is an apocalyptic number.

20031703 is a deficient number, since it is larger than the sum of its proper divisors (1).

20031703 is an equidigital number, since it uses as much as digits as its factorization.

20031703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 16.

The square root of 20031703 is about 4475.6790546240. The cubic root of 20031703 is about 271.5851112455.

Adding to 20031703 its reverse (30713002), we get a palindrome (50744705).

The spelling of 20031703 in words is "twenty million, thirty-one thousand, seven hundred three".