1011129772 has 12 divisors (see below), whose sum is σ = 1846411056. Its totient is φ = 483583760.

The previous prime is 1011129767. The next prime is 1011129773. The reversal of 1011129772 is 2779211101.

1011129772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1011129773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5495179 + ... + 5495362.

It is an arithmetic number, because the mean of its divisors is an integer number (153867588).

Almost surely, 2^1011129772 is an apocalyptic number.

It is an amenable number.

1011129772 is a deficient number, since it is larger than the sum of its proper divisors (835281284).

1011129772 is a wasteful number, since it uses less digits than its factorization.

1011129772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10990568 (or 10990566 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 31.

The square root of 1011129772 is about 31798.2668081139. The cubic root of 1011129772 is about 1003.6962449404.

The spelling of 1011129772 in words is "one billion, eleven million, one hundred twenty-nine thousand, seven hundred seventy-two".