2120324436121 has 2 divisors, whose sum is σ = 2120324436122. Its totient is φ = 2120324436120.

The previous prime is 2120324436079. The next prime is 2120324436151. The reversal of 2120324436121 is 1216344230212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1488800186896 + 631524249225 = 1220164^2 + 794685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120324436121 - 2²¹ = 2120322338969 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120324436151) 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 as a sum of consecutive naturals, namely, 1060162218060 + 1060162218061.

It is an arithmetic number, because the mean of its divisors is an integer number (1060162218061).

Almost surely, 2^{2120324436121} is an apocalyptic number.

It is an amenable number.

2120324436121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120324436121 is an equidigital number, since it uses as much as digits as its factorization.

2120324436121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 2120324436121 its reverse (1216344230212), we get a palindrome (3336668666333).

The spelling of 2120324436121 in words is "two trillion, one hundred twenty billion, three hundred twenty-four million, four hundred thirty-six thousand, one hundred twenty-one".