1129311293 has 16 divisors (see below), whose sum is σ = 1288300032. Its totient is φ = 979902000.

The previous prime is 1129311289. The next prime is 1129311317. The reversal of 1129311293 is 3921139211.

It is a happy number.

It is not a de Polignac number, because 1129311293 - 2² = 1129311289 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 (1129311233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119678 + ... + 128768.

It is an arithmetic number, because the mean of its divisors is an integer number (80518752).

Almost surely, 2^1129311293 is an apocalyptic number.

It is an amenable number.

1129311293 is a deficient number, since it is larger than the sum of its proper divisors (158988739).

1129311293 is a wasteful number, since it uses less digits than its factorization.

1129311293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9616.

The product of its digits is 2916, while the sum is 32.

The square root of 1129311293 is about 33605.2271678083. The cubic root of 1129311293 is about 1041.3687884800.

It can be divided in two parts, 11 and 29311293, that multiplied together give a palindrome (322424223).

The spelling of 1129311293 in words is "one billion, one hundred twenty-nine million, three hundred eleven thousand, two hundred ninety-three".