1121023012 has 12 divisors (see below), whose sum is σ = 1964373516. Its totient is φ = 559773440.

The previous prime is 1121022997. The next prime is 1121023019. The reversal of 1121023012 is 2103201211.

It can be written as a sum of positive squares in 2 ways, for example, as 253956096 + 867066916 = 15936^2 + 29446^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121022983 and 1121023001.

It is not an unprimeable number, because it can be changed into a prime (1121023019) 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, 181093 + ... + 187180.

It is an arithmetic number, because the mean of its divisors is an integer number (163697793).

Almost surely, 2^1121023012 is an apocalyptic number.

It is an amenable number.

1121023012 is a deficient number, since it is larger than the sum of its proper divisors (843350504).

1121023012 is a wasteful number, since it uses less digits than its factorization.

1121023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369038 (or 369036 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1121023012 is about 33481.6817379295. The cubic root of 1121023012 is about 1038.8149136600.

Adding to 1121023012 its reverse (2103201211), we get a palindrome (3224224223).

The spelling of 1121023012 in words is "one billion, one hundred twenty-one million, twenty-three thousand, twelve".