1129986311 has 8 divisors (see below), whose sum is σ = 1196791200. Its totient is φ = 1063218688.

The previous prime is 1129986307. The next prime is 1129986329. The reversal of 1129986311 is 1136899211.

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

It is a cyclic number.

It is not a de Polignac number, because 1129986311 - 2² = 1129986307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129986331) 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, 74990 + ... + 88788.

It is an arithmetic number, because the mean of its divisors is an integer number (149598900).

Almost surely, 2^1129986311 is an apocalyptic number.

1129986311 is a deficient number, since it is larger than the sum of its proper divisors (66804889).

1129986311 is a wasteful number, since it uses less digits than its factorization.

1129986311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18633.

The product of its digits is 23328, while the sum is 41.

The square root of 1129986311 is about 33615.2690157315. The cubic root of 1129986311 is about 1041.5762313325.

The spelling of 1129986311 in words is "one billion, one hundred twenty-nine million, nine hundred eighty-six thousand, three hundred eleven".