2120044397 has 2 divisors, whose sum is σ = 2120044398. Its totient is φ = 2120044396.

The previous prime is 2120044357. The next prime is 2120044403. The reversal of 2120044397 is 7934400212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084926921 + 35117476 = 45661^2 + 5926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120044397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120044307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060022198 + 1060022199.

It is an arithmetic number, because the mean of its divisors is an integer number (1060022199).

Almost surely, 2^2120044397 is an apocalyptic number.

It is an amenable number.

2120044397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120044397 is an equidigital number, since it uses as much as digits as its factorization.

2120044397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 2120044397 is about 46043.9398509728. The cubic root of 2120044397 is about 1284.6406252272.

The spelling of 2120044397 in words is "two billion, one hundred twenty million, forty-four thousand, three hundred ninety-seven".