1202135171 has 2 divisors, whose sum is σ = 1202135172. Its totient is φ = 1202135170.

The previous prime is 1202135131. The next prime is 1202135177. The reversal of 1202135171 is 1715312021.

It is a strong prime.

It is an emirp because it is prime and its reverse (1715312021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1202135171 - 2⁶ = 1202135107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1202135177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601067585 + 601067586.

It is an arithmetic number, because the mean of its divisors is an integer number (601067586).

Almost surely, 2^1202135171 is an apocalyptic number.

1202135171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202135171 is an equidigital number, since it uses as much as digits as its factorization.

1202135171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1202135171 is about 34671.8209934235. The cubic root of 1202135171 is about 1063.2884617834.

Adding to 1202135171 its reverse (1715312021), we get a palindrome (2917447192).

The spelling of 1202135171 in words is "one billion, two hundred two million, one hundred thirty-five thousand, one hundred seventy-one".