1129311268 has 6 divisors (see below), whose sum is σ = 1976294726. Its totient is φ = 564655632.

The previous prime is 1129311263. The next prime is 1129311283. The reversal of 1129311268 is 8621139211.

It can be written as a sum of positive squares in only one way, i.e., 851355684 + 277955584 = 29178^2 + 16672^2 .

It is not an unprimeable number, because it can be changed into a prime (1129311263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141163905 + ... + 141163912.

Almost surely, 2^1129311268 is an apocalyptic number.

It is an amenable number.

1129311268 is a deficient number, since it is larger than the sum of its proper divisors (846983458).

1129311268 is a wasteful number, since it uses less digits than its factorization.

1129311268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282327821 (or 282327819 counting only the distinct ones).

The product of its digits is 5184, while the sum is 34.

The square root of 1129311268 is about 33605.2267958423. The cubic root of 1129311268 is about 1041.3687807956.

The spelling of 1129311268 in words is "one billion, one hundred twenty-nine million, three hundred eleven thousand, two hundred sixty-eight".