3134321221 has 4 divisors (see below), whose sum is σ = 3134731212. Its totient is φ = 3133911232.

The previous prime is 3134321191. The next prime is 3134321227. The reversal of 3134321221 is 1221234313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2142764100 + 991557121 = 46290^2 + 31489^2 .

It is a cyclic number.

It is not a de Polignac number, because 3134321221 - 2¹⁹ = 3133796933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3134321192 and 3134321201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3134321227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193306 + ... + 208891.

It is an arithmetic number, because the mean of its divisors is an integer number (783682803).

Almost surely, 2^3134321221 is an apocalyptic number.

It is an amenable number.

3134321221 is a deficient number, since it is larger than the sum of its proper divisors (409991).

3134321221 is an equidigital number, since it uses as much as digits as its factorization.

3134321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409990.

The product of its digits is 864, while the sum is 22.

The square root of 3134321221 is about 55985.0088952391. The cubic root of 3134321221 is about 1463.4610483755.

Adding to 3134321221 its reverse (1221234313), we get a palindrome (4355555534).

The spelling of 3134321221 in words is "three billion, one hundred thirty-four million, three hundred twenty-one thousand, two hundred twenty-one".