17120340027 has 24 divisors (see below), whose sum is σ = 28287299040. Its totient is φ = 9774345600.

The previous prime is 17120340001. The next prime is 17120340071. The reversal of 17120340027 is 72004302171.

It is a happy number.

It is not a de Polignac number, because 17120340027 - 2²³ = 17111951419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (17120340427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49224 + ... + 191477.

It is an arithmetic number, because the mean of its divisors is an integer number (1178637460).

Almost surely, 2^17120340027 is an apocalyptic number.

17120340027 is a deficient number, since it is larger than the sum of its proper divisors (11166959013).

17120340027 is a wasteful number, since it uses less digits than its factorization.

17120340027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241843 (or 241840 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

Adding to 17120340027 its reverse (72004302171), we get a palindrome (89124642198).

The spelling of 17120340027 in words is "seventeen billion, one hundred twenty million, three hundred forty thousand, twenty-seven".