1312322213 has 8 divisors (see below), whose sum is σ = 1337700000. Its totient is φ = 1287172368.

The previous prime is 1312322171. The next prime is 1312322243. The reversal of 1312322213 is 3122232131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312322213 - 2¹⁶ = 1312256677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312322243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45338 + ... + 68411.

It is an arithmetic number, because the mean of its divisors is an integer number (167212500).

Almost surely, 2^1312322213 is an apocalyptic number.

It is an amenable number.

1312322213 is a deficient number, since it is larger than the sum of its proper divisors (25377787).

1312322213 is a wasteful number, since it uses less digits than its factorization.

1312322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113971.

The product of its digits is 432, while the sum is 20.

The square root of 1312322213 is about 36225.9880886636. The cubic root of 1312322213 is about 1094.8303464495.

Adding to 1312322213 its reverse (3122232131), we get a palindrome (4434554344).

The spelling of 1312322213 in words is "one billion, three hundred twelve million, three hundred twenty-two thousand, two hundred thirteen".