20603713211 has 2 divisors, whose sum is σ = 20603713212. Its totient is φ = 20603713210.

The previous prime is 20603713199. The next prime is 20603713279. The reversal of 20603713211 is 11231730602.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20603713211 - 2¹⁸ = 20603451067 is a prime.

It is a super-2 number, since 2×20603713211² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20603743211) 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, 10301856605 + 10301856606.

It is an arithmetic number, because the mean of its divisors is an integer number (10301856606).

Almost surely, 2^20603713211 is an apocalyptic number.

20603713211 is a deficient number, since it is larger than the sum of its proper divisors (1).

20603713211 is an equidigital number, since it uses as much as digits as its factorization.

20603713211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The spelling of 20603713211 in words is "twenty billion, six hundred three million, seven hundred thirteen thousand, two hundred eleven".