20300031043 has 2 divisors, whose sum is σ = 20300031044. Its totient is φ = 20300031042.

The previous prime is 20300030999. The next prime is 20300031049. The reversal of 20300031043 is 34013000302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20300031043 is a prime.

It is not a weakly prime, because it can be changed into another prime (20300031049) 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 as a sum of consecutive naturals, namely, 10150015521 + 10150015522.

It is an arithmetic number, because the mean of its divisors is an integer number (10150015522).

Almost surely, 2^20300031043 is an apocalyptic number.

20300031043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300031043 is an equidigital number, since it uses as much as digits as its factorization.

20300031043 is an odious number, because the sum of its binary digits is odd.

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

Adding to 20300031043 its reverse (34013000302), we get a palindrome (54313031345).

The spelling of 20300031043 in words is "twenty billion, three hundred million, thirty-one thousand, forty-three".