165015121050103 has 2 divisors, whose sum is σ = 165015121050104. Its totient is φ = 165015121050102.

The previous prime is 165015121049983. The next prime is 165015121050107. The reversal of 165015121050103 is 301050121510561.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165015121050103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165015121050107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82507560525051 + 82507560525052.

It is an arithmetic number, because the mean of its divisors is an integer number (82507560525052).

Almost surely, 2^{165015121050103} is an apocalyptic number.

165015121050103 is a deficient number, since it is larger than the sum of its proper divisors (1).

165015121050103 is an equidigital number, since it uses as much as digits as its factorization.

165015121050103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 31.

Adding to 165015121050103 its reverse (301050121510561), we get a palindrome (466065242560664).

The spelling of 165015121050103 in words is "one hundred sixty-five trillion, fifteen billion, one hundred twenty-one million, fifty thousand, one hundred three".