1121131012 has 12 divisors (see below), whose sum is σ = 1976957136. Its totient is φ = 556286120.

The previous prime is 1121131009. The next prime is 1121131013. The reversal of 1121131012 is 2101311211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1121130983 and 1121131001.

It is not an unprimeable number, because it can be changed into a prime (1121131013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069258 + ... + 1070305.

It is an arithmetic number, because the mean of its divisors is an integer number (164746428).

Almost surely, 2^1121131012 is an apocalyptic number.

It is an amenable number.

1121131012 is a deficient number, since it is larger than the sum of its proper divisors (855826124).

1121131012 is a wasteful number, since it uses less digits than its factorization.

1121131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139698 (or 2139696 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1121131012 is about 33483.2945212982. The cubic root of 1121131012 is about 1038.8482725970.

Adding to 1121131012 its reverse (2101311211), we get a palindrome (3222442223).

The spelling of 1121131012 in words is "one billion, one hundred twenty-one million, one hundred thirty-one thousand, twelve".