2120313121211 has 16 divisors (see below), whose sum is σ = 2235039609600. Its totient is φ = 2008498779168.

The previous prime is 2120313121193. The next prime is 2120313121231. The reversal of 2120313121211 is 1121213130212.

It is a de Polignac number, because none of the positive numbers 2^k-2120313121211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120313121231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371201 + ... + 2092466.

It is an arithmetic number, because the mean of its divisors is an integer number (139689975600).

Almost surely, 2^{2120313121211} is an apocalyptic number.

2120313121211 is a deficient number, since it is larger than the sum of its proper divisors (114726488389).

2120313121211 is a wasteful number, since it uses less digits than its factorization.

2120313121211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464258.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2120313121211 its reverse (1121213130212), we get a palindrome (3241526251423).

Subtracting from 2120313121211 its reverse (1121213130212), we obtain a palindrome (999099990999).

The spelling of 2120313121211 in words is "two trillion, one hundred twenty billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred eleven".