2123320211211 has 16 divisors (see below), whose sum is σ = 2857442678784. Its totient is φ = 1402383636864.

The previous prime is 2123320211209. The next prime is 2123320211267. The reversal of 2123320211211 is 1121120233212.

It is not a de Polignac number, because 2123320211211 - 2¹ = 2123320211209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2123320211281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 670831 + ... + 2167176.

It is an arithmetic number, because the mean of its divisors is an integer number (178590167424).

Almost surely, 2^{2123320211211} is an apocalyptic number.

2123320211211 is a deficient number, since it is larger than the sum of its proper divisors (734122467573).

2123320211211 is a wasteful number, since it uses less digits than its factorization.

2123320211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2840330.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2123320211211 its reverse (1121120233212), we get a palindrome (3244440444423).

The spelling of 2123320211211 in words is "two trillion, one hundred twenty-three billion, three hundred twenty million, two hundred eleven thousand, two hundred eleven".