20320211003 has 2 divisors, whose sum is σ = 20320211004. Its totient is φ = 20320211002.

The previous prime is 20320210951. The next prime is 20320211011. The reversal of 20320211003 is 30011202302.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20320211003 - 2²⁶ = 20253102139 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20320211053) 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, 10160105501 + 10160105502.

It is an arithmetic number, because the mean of its divisors is an integer number (10160105502).

Almost surely, 2^20320211003 is an apocalyptic number.

20320211003 is a deficient number, since it is larger than the sum of its proper divisors (1).

20320211003 is an equidigital number, since it uses as much as digits as its factorization.

20320211003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20320211003 its reverse (30011202302), we get a palindrome (50331413305).

The spelling of 20320211003 in words is "twenty billion, three hundred twenty million, two hundred eleven thousand, three".