1306111068 has 120 divisors (see below), whose sum is σ = 3517353840. Its totient is φ = 422392320.

The previous prime is 1306111067. The next prime is 1306111069. The reversal of 1306111068 is 8601116031.

1306111068 is a `hidden beast` number, since 1 + 30 + 611 + 10 + 6 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1306111067) and next prime (1306111069).

It is a super-2 number, since 2×1306111068² = 3411852243904201248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306111061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3357418 + ... + 3357806.

It is an arithmetic number, because the mean of its divisors is an integer number (29311282).

Almost surely, 2^1306111068 is an apocalyptic number.

1306111068 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1306111068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1758676920).

1306111068 is an abundant number, since it is smaller than the sum of its proper divisors (2211242772).

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

1306111068 is a wasteful number, since it uses less digits than its factorization.

1306111068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 678 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1306111068 is about 36140.1586604154. The cubic root of 1306111068 is about 1093.1003580616.

Adding to 1306111068 its reverse (8601116031), we get a palindrome (9907227099).

The spelling of 1306111068 in words is "one billion, three hundred six million, one hundred eleven thousand, sixty-eight".