1213133005 has 16 divisors (see below), whose sum is σ = 1761592320. Its totient is φ = 782929152.

The previous prime is 1213132993. The next prime is 1213133029. The reversal of 1213133005 is 5003313121.

It is not a de Polignac number, because 1213133005 - 2¹¹ = 1213130957 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018845 + ... + 1020034.

It is an arithmetic number, because the mean of its divisors is an integer number (110099520).

Almost surely, 2^1213133005 is an apocalyptic number.

It is an amenable number.

1213133005 is a deficient number, since it is larger than the sum of its proper divisors (548459315).

1213133005 is a wasteful number, since it uses less digits than its factorization.

1213133005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038908.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1213133005 is about 34830.0589290343. The cubic root of 1213133005 is about 1066.5211513193.

Adding to 1213133005 its reverse (5003313121), we get a palindrome (6216446126).

The spelling of 1213133005 in words is "one billion, two hundred thirteen million, one hundred thirty-three thousand, five".