20013232731203 has 2 divisors, whose sum is σ = 20013232731204. Its totient is φ = 20013232731202.

The previous prime is 20013232731169. The next prime is 20013232731209. The reversal of 20013232731203 is 30213723231002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20013232731203 - 2⁸ = 20013232730947 is a prime.

It is not a weakly prime, because it can be changed into another prime (20013232731209) 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, 10006616365601 + 10006616365602.

It is an arithmetic number, because the mean of its divisors is an integer number (10006616365602).

Almost surely, 2^{20013232731203} is an apocalyptic number.

20013232731203 is a deficient number, since it is larger than the sum of its proper divisors (1).

20013232731203 is an equidigital number, since it uses as much as digits as its factorization.

20013232731203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

Adding to 20013232731203 its reverse (30213723231002), we get a palindrome (50226955962205).

The spelling of 20013232731203 in words is "twenty trillion, thirteen billion, two hundred thirty-two million, seven hundred thirty-one thousand, two hundred three".