1213003171 has 2 divisors, whose sum is σ = 1213003172. Its totient is φ = 1213003170.

The previous prime is 1213003151. The next prime is 1213003199. The reversal of 1213003171 is 1713003121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213003171 - 2¹⁵ = 1212970403 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213003151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606501585 + 606501586.

It is an arithmetic number, because the mean of its divisors is an integer number (606501586).

Almost surely, 2^1213003171 is an apocalyptic number.

1213003171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213003171 is an equidigital number, since it uses as much as digits as its factorization.

1213003171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1213003171 is about 34828.1950580273. The cubic root of 1213003171 is about 1066.4831022769.

Adding to 1213003171 its reverse (1713003121), we get a palindrome (2926006292).

The spelling of 1213003171 in words is "one billion, two hundred thirteen million, three thousand, one hundred seventy-one".