1213006106 has 32 divisors (see below), whose sum is σ = 2019068688. Its totient is φ = 543075840.

The previous prime is 1213006097. The next prime is 1213006111. The reversal of 1213006106 is 6016003121.

It can be written as a sum of positive squares in 8 ways, for example, as 237006025 + 976000081 = 15395^2 + 31241^2 .

It is a Curzon 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, 110540 + ... + 121016.

Almost surely, 2^1213006106 is an apocalyptic number.

1213006106 is a deficient number, since it is larger than the sum of its proper divisors (806062582).

1213006106 is a wasteful number, since it uses less digits than its factorization.

1213006106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1213006106 is about 34828.2371934039. The cubic root of 1213006106 is about 1066.4839624356.

Adding to 1213006106 its reverse (6016003121), we get a palindrome (7229009227).

The spelling of 1213006106 in words is "one billion, two hundred thirteen million, six thousand, one hundred six".