2120121012073 has 2 divisors, whose sum is σ = 2120121012074. Its totient is φ = 2120121012072.

The previous prime is 2120121012047. The next prime is 2120121012157. The reversal of 2120121012073 is 3702101210212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1913648922409 + 206472089664 = 1383347^2 + 454392^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120121012073 - 2¹³ = 2120121003881 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120121012043) 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, 1060060506036 + 1060060506037.

It is an arithmetic number, because the mean of its divisors is an integer number (1060060506037).

Almost surely, 2^{2120121012073} is an apocalyptic number.

It is an amenable number.

2120121012073 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120121012073 is an equidigital number, since it uses as much as digits as its factorization.

2120121012073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 22.

Adding to 2120121012073 its reverse (3702101210212), we get a palindrome (5822222222285).

The spelling of 2120121012073 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, twelve thousand, seventy-three".