17148748121 has 2 divisors, whose sum is σ = 17148748122. Its totient is φ = 17148748120.

The previous prime is 17148748103. The next prime is 17148748189. The reversal of 17148748121 is 12184784171.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17138737225 + 10010896 = 130915^2 + 3164^2 .

It is a cyclic number.

It is not a de Polignac number, because 17148748121 - 2¹⁰ = 17148747097 is a prime.

It is not a weakly prime, because it can be changed into another prime (17148744121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8574374060 + 8574374061.

It is an arithmetic number, because the mean of its divisors is an integer number (8574374061).

Almost surely, 2^17148748121 is an apocalyptic number.

It is an amenable number.

17148748121 is a deficient number, since it is larger than the sum of its proper divisors (1).

17148748121 is an equidigital number, since it uses as much as digits as its factorization.

17148748121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100352, while the sum is 44.

The spelling of 17148748121 in words is "seventeen billion, one hundred forty-eight million, seven hundred forty-eight thousand, one hundred twenty-one".