17120251423 has 16 divisors (see below), whose sum is σ = 18799482240. Its totient is φ = 15461820000.

The previous prime is 17120251409. The next prime is 17120251439. The reversal of 17120251423 is 32415202171.

It is a de Polignac number, because none of the positive numbers 2^k-17120251423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 17120251391 and 17120251400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17120251453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1088308 + ... + 1103926.

It is an arithmetic number, because the mean of its divisors is an integer number (1174967640).

Almost surely, 2^17120251423 is an apocalyptic number.

17120251423 is a deficient number, since it is larger than the sum of its proper divisors (1679230817).

17120251423 is a wasteful number, since it uses less digits than its factorization.

17120251423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16278.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 17120251423 its reverse (32415202171), we get a palindrome (49535453594).

The spelling of 17120251423 in words is "seventeen billion, one hundred twenty million, two hundred fifty-one thousand, four hundred twenty-three".