1306120011 has 8 divisors (see below), whose sum is σ = 1990278144. Its totient is φ = 746354280.

The previous prime is 1306119977. The next prime is 1306120037. The reversal of 1306120011 is 1100216031.

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

It is not a de Polignac number, because 1306120011 - 2¹⁷ = 1305988939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1306120061) 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 7 ways as a sum of consecutive naturals, for example, 31098075 + ... + 31098116.

It is an arithmetic number, because the mean of its divisors is an integer number (248784768).

Almost surely, 2^1306120011 is an apocalyptic number.

1306120011 is a deficient number, since it is larger than the sum of its proper divisors (684158133).

1306120011 is an equidigital number, since it uses as much as digits as its factorization.

1306120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62196201.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1306120011 is about 36140.2823868326. The cubic root of 1306120011 is about 1093.1028528913.

Adding to 1306120011 its reverse (1100216031), we get a palindrome (2406336042).

The spelling of 1306120011 in words is "one billion, three hundred six million, one hundred twenty thousand, eleven".