2120303117 has 2 divisors, whose sum is σ = 2120303118. Its totient is φ = 2120303116.

The previous prime is 2120303113. The next prime is 2120303131. The reversal of 2120303117 is 7113030212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1847194441 + 273108676 = 42979^2 + 16526^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120303117 - 2² = 2120303113 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120303113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060151558 + 1060151559.

It is an arithmetic number, because the mean of its divisors is an integer number (1060151559).

Almost surely, 2^2120303117 is an apocalyptic number.

It is an amenable number.

2120303117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120303117 is an equidigital number, since it uses as much as digits as its factorization.

2120303117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 2120303117 is about 46046.7492555121. The cubic root of 2120303117 is about 1284.6928802183.

Adding to 2120303117 its reverse (7113030212), we get a palindrome (9233333329).

The spelling of 2120303117 in words is "two billion, one hundred twenty million, three hundred three thousand, one hundred seventeen".