2120023117 has 2 divisors, whose sum is σ = 2120023118. Its totient is φ = 2120023116.

The previous prime is 2120023111. The next prime is 2120023123. The reversal of 2120023117 is 7113200212.

It is a balanced prime because it is at equal distance from previous prime (2120023111) and next prime (2120023123).

It can be written as a sum of positive squares in only one way, i.e., 1500710121 + 619312996 = 38739^2 + 24886^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120023117 - 2¹¹ = 2120021069 is a prime.

It is a super-2 number, since 2×2120023117² = 8988996033228791378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120023094 and 2120023103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2120023111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060011558 + 1060011559.

It is an arithmetic number, because the mean of its divisors is an integer number (1060011559).

Almost surely, 2^2120023117 is an apocalyptic number.

It is an amenable number.

2120023117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120023117 is an equidigital number, since it uses as much as digits as its factorization.

2120023117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2120023117 is about 46043.7087667794. The cubic root of 2120023117 is about 1284.6363270084.

Adding to 2120023117 its reverse (7113200212), we get a palindrome (9233223329).

The spelling of 2120023117 in words is "two billion, one hundred twenty million, twenty-three thousand, one hundred seventeen".