2120323221311 has 2 divisors, whose sum is σ = 2120323221312. Its totient is φ = 2120323221310.

The previous prime is 2120323221301. The next prime is 2120323221319. The reversal of 2120323221311 is 1131223230212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120323221311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120323221319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060161610655 + 1060161610656.

It is an arithmetic number, because the mean of its divisors is an integer number (1060161610656).

Almost surely, 2^{2120323221311} is an apocalyptic number.

2120323221311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120323221311 is an equidigital number, since it uses as much as digits as its factorization.

2120323221311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2120323221311 its reverse (1131223230212), we get a palindrome (3251546451523).

It can be divided in two parts, 212032 and 3221311, that added together give a palindrome (3433343).

The spelling of 2120323221311 in words is "two trillion, one hundred twenty billion, three hundred twenty-three million, two hundred twenty-one thousand, three hundred eleven".