168502131101 has 2 divisors, whose sum is σ = 168502131102. Its totient is φ = 168502131100.

The previous prime is 168502131079. The next prime is 168502131113. The reversal of 168502131101 is 101131205861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164312676025 + 4189455076 = 405355^2 + 64726^2 .

It is a cyclic number.

It is not a de Polignac number, because 168502131101 - 2²⁶ = 168435022237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168502131401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84251065550 + 84251065551.

It is an arithmetic number, because the mean of its divisors is an integer number (84251065551).

Almost surely, 2^168502131101 is an apocalyptic number.

It is an amenable number.

168502131101 is a deficient number, since it is larger than the sum of its proper divisors (1).

168502131101 is an equidigital number, since it uses as much as digits as its factorization.

168502131101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 29.

Adding to 168502131101 its reverse (101131205861), we get a palindrome (269633336962).

The spelling of 168502131101 in words is "one hundred sixty-eight billion, five hundred two million, one hundred thirty-one thousand, one hundred one".