1213106727 has 16 divisors (see below), whose sum is σ = 1850546432. Its totient is φ = 692452800.

The previous prime is 1213106717. The next prime is 1213106747. The reversal of 1213106727 is 7276013121.

It is not a de Polignac number, because 1213106727 - 2⁷ = 1213106599 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213106694 and 1213106703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213106717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11149 + ... + 50502.

It is an arithmetic number, because the mean of its divisors is an integer number (115659152).

Almost surely, 2^1213106727 is an apocalyptic number.

1213106727 is a deficient number, since it is larger than the sum of its proper divisors (637439705).

1213106727 is an equidigital number, since it uses as much as digits as its factorization.

1213106727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62598.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1213106727 is about 34829.6816953586. The cubic root of 1213106727 is about 1066.5134505300.

Adding to 1213106727 its reverse (7276013121), we get a palindrome (8489119848).

The spelling of 1213106727 in words is "one billion, two hundred thirteen million, one hundred six thousand, seven hundred twenty-seven".