1266123108 has 12 divisors (see below), whose sum is σ = 2954287280. Its totient is φ = 422041032.

The previous prime is 1266123107. The next prime is 1266123109. The reversal of 1266123108 is 8013216621.

It is an interprime number because it is at equal distance from previous prime (1266123107) and next prime (1266123109).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1266123108² = 3206135449223159328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1266123101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52755118 + ... + 52755141.

Almost surely, 2^1266123108 is an apocalyptic number.

It is an amenable number.

1266123108 is an abundant number, since it is smaller than the sum of its proper divisors (1688164172).

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

1266123108 is a wasteful number, since it uses less digits than its factorization.

1266123108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105510266 (or 105510264 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1266123108 is about 35582.6236806675. The cubic root of 1266123108 is about 1081.8290645106.

Adding to 1266123108 its reverse (8013216621), we get a palindrome (9279339729).

The spelling of 1266123108 in words is "one billion, two hundred sixty-six million, one hundred twenty-three thousand, one hundred eight".