1321061106 has 8 divisors (see below), whose sum is σ = 2642122224. Its totient is φ = 440353700.

The previous prime is 1321061081. The next prime is 1321061107. The reversal of 1321061106 is 6011601231.

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

1321061106 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1321061107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110088420 + ... + 110088431.

It is an arithmetic number, because the mean of its divisors is an integer number (330265278).

Almost surely, 2^1321061106 is an apocalyptic number.

1321061106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1321061106 is a wasteful number, since it uses less digits than its factorization.

1321061106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220176856.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1321061106 is about 36346.4043063410. The cubic root of 1321061106 is about 1097.2551691908.

Adding to 1321061106 its reverse (6011601231), we get a palindrome (7332662337).

The spelling of 1321061106 in words is "one billion, three hundred twenty-one million, sixty-one thousand, one hundred six".