2123030320211 has 16 divisors (see below), whose sum is σ = 2268535248000. Its totient is φ = 1979882185728.

The previous prime is 2123030320153. The next prime is 2123030320217. The reversal of 2123030320211 is 1120230303212.

It is a de Polignac number, because none of the positive numbers 2^k-2123030320211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123030320217) 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, 11366 + ... + 2060628.

It is an arithmetic number, because the mean of its divisors is an integer number (141783453000).

Almost surely, 2^{2123030320211} is an apocalyptic number.

2123030320211 is a deficient number, since it is larger than the sum of its proper divisors (145504927789).

2123030320211 is a wasteful number, since it uses less digits than its factorization.

2123030320211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049838.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2123030320211 its reverse (1120230303212), we get a palindrome (3243260623423).

The spelling of 2123030320211 in words is "two trillion, one hundred twenty-three billion, thirty million, three hundred twenty thousand, two hundred eleven".