1020023117 has 2 divisors, whose sum is σ = 1020023118. Its totient is φ = 1020023116.

The previous prime is 1020023099. The next prime is 1020023131. The reversal of 1020023117 is 7113200201.

1020023117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 567440041 + 452583076 = 23821^2 + 21274^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020023117 - 2²⁶ = 952914253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020023095 and 1020023104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020023197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510011558 + 510011559.

It is an arithmetic number, because the mean of its divisors is an integer number (510011559).

Almost surely, 2^1020023117 is an apocalyptic number.

It is an amenable number.

1020023117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020023117 is an equidigital number, since it uses as much as digits as its factorization.

1020023117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1020023117 is about 31937.8007539655. The cubic root of 1020023117 is about 1006.6303141096.

Adding to 1020023117 its reverse (7113200201), we get a palindrome (8133223318).

The spelling of 1020023117 in words is "one billion, twenty million, twenty-three thousand, one hundred seventeen".