1213106344 has 32 divisors (see below), whose sum is σ = 2310323400. Its totient is φ = 597093120.

The previous prime is 1213106333. The next prime is 1213106359. The reversal of 1213106344 is 4436013121.

It can be written as a sum of positive squares in 4 ways, for example, as 1208952900 + 4153444 = 34770^2 + 2038^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132474 + ... + 141334.

Almost surely, 2^1213106344 is an apocalyptic number.

It is an amenable number.

1213106344 is a deficient number, since it is larger than the sum of its proper divisors (1097217056).

1213106344 is a wasteful number, since it uses less digits than its factorization.

1213106344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9133 (or 9129 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1213106344 is about 34829.6761971742. The cubic root of 1213106344 is about 1066.5133382907.

Adding to 1213106344 its reverse (4436013121), we get a palindrome (5649119465).

The spelling of 1213106344 in words is "one billion, two hundred thirteen million, one hundred six thousand, three hundred forty-four".