211320102311 has 4 divisors (see below), whose sum is σ = 211329760800. Its totient is φ = 211310443824.

The previous prime is 211320102277. The next prime is 211320102401. The reversal of 211320102311 is 113201023112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211320102311 - 2¹⁰ = 211320101287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211320102311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211323102311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4796351 + ... + 4840208.

It is an arithmetic number, because the mean of its divisors is an integer number (52832440200).

Almost surely, 2^211320102311 is an apocalyptic number.

211320102311 is a deficient number, since it is larger than the sum of its proper divisors (9658489).

211320102311 is an equidigital number, since it uses as much as digits as its factorization.

211320102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9658488.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211320102311 its reverse (113201023112), we get a palindrome (324521125423).

It can be divided in two parts, 2 and 11320102311, that multiplied together give a palindrome (22640204622).

The spelling of 211320102311 in words is "two hundred eleven billion, three hundred twenty million, one hundred two thousand, three hundred eleven".