1129103712 has 180 divisors, whose sum is σ = 3640836276. Its totient is φ = 340433280.

The previous prime is 1129103711. The next prime is 1129103713. The reversal of 1129103712 is 2173019211.

1129103712 is a `hidden beast` number, since 1 + 1 + 291 + 0 + 371 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1129103711) and next prime (1129103713).

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 (1129103711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 5673789 + ... + 5673987.

Almost surely, 2^1129103712 is an apocalyptic number.

1129103712 is a gapful number since it is divisible by the number (12) 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 1129103712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1820418138).

1129103712 is an abundant number, since it is smaller than the sum of its proper divisors (2511732564).

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

1129103712 is an equidigital number, since it uses as much as digits as its factorization.

1129103712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 1129103712 is about 33602.1385033750. The cubic root of 1129103712 is about 1041.3049792003.

The spelling of 1129103712 in words is "one billion, one hundred twenty-nine million, one hundred three thousand, seven hundred twelve".