17120213531 has 2 divisors, whose sum is σ = 17120213532. Its totient is φ = 17120213530.

The previous prime is 17120213479. The next prime is 17120213557. The reversal of 17120213531 is 13531202171.

It is an a-pointer prime, because the next prime (17120213557) can be obtained adding 17120213531 to its sum of digits (26).

It is a strong prime.

It is an emirp because it is prime and its reverse (13531202171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17120213531 - 2²⁶ = 17053104667 is a prime.

It is a super-2 number, since 2×17120213531² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 17120213531.

It is not a weakly prime, because it can be changed into another prime (17120203531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8560106765 + 8560106766.

It is an arithmetic number, because the mean of its divisors is an integer number (8560106766).

Almost surely, 2^17120213531 is an apocalyptic number.

17120213531 is a deficient number, since it is larger than the sum of its proper divisors (1).

17120213531 is an equidigital number, since it uses as much as digits as its factorization.

17120213531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The spelling of 17120213531 in words is "seventeen billion, one hundred twenty million, two hundred thirteen thousand, five hundred thirty-one".