17361420121 has 2 divisors, whose sum is σ = 17361420122. Its totient is φ = 17361420120.

The previous prime is 17361420103. The next prime is 17361420137. The reversal of 17361420121 is 12102416371.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13470155721 + 3891264400 = 116061^2 + 62380^2 .

It is a cyclic number.

It is not a de Polignac number, because 17361420121 - 2¹³ = 17361411929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17361420121.

It is not a weakly prime, because it can be changed into another prime (17361420101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8680710060 + 8680710061.

It is an arithmetic number, because the mean of its divisors is an integer number (8680710061).

Almost surely, 2^17361420121 is an apocalyptic number.

It is an amenable number.

17361420121 is a deficient number, since it is larger than the sum of its proper divisors (1).

17361420121 is an equidigital number, since it uses as much as digits as its factorization.

17361420121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

Adding to 17361420121 its reverse (12102416371), we get a palindrome (29463836492).

The spelling of 17361420121 in words is "seventeen billion, three hundred sixty-one million, four hundred twenty thousand, one hundred twenty-one".