1129912971 has 8 divisors (see below), whose sum is σ = 1643509824. Its totient is φ = 684795720.

The previous prime is 1129912969. The next prime is 1129912981. The reversal of 1129912971 is 1792199211.

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

It is not a de Polignac number, because 1129912971 - 2¹ = 1129912969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1129912921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17119861 + ... + 17119926.

It is an arithmetic number, because the mean of its divisors is an integer number (205438728).

Almost surely, 2^1129912971 is an apocalyptic number.

1129912971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1129912971 is a deficient number, since it is larger than the sum of its proper divisors (513596853).

1129912971 is a wasteful number, since it uses less digits than its factorization.

1129912971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34239801.

The product of its digits is 20412, while the sum is 42.

The square root of 1129912971 is about 33614.1781247140. The cubic root of 1129912971 is about 1041.5536968844.

The spelling of 1129912971 in words is "one billion, one hundred twenty-nine million, nine hundred twelve thousand, nine hundred seventy-one".