1201123012 has 6 divisors (see below), whose sum is σ = 2101965278. Its totient is φ = 600561504.

The previous prime is 1201122983. The next prime is 1201123051. The reversal of 1201123012 is 2103211021.

It can be written as a sum of positive squares in only one way, i.e., 716418756 + 484704256 = 26766^2 + 22016^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201122983 and 1201123001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150140373 + ... + 150140380.

Almost surely, 2^1201123012 is an apocalyptic number.

It is an amenable number.

1201123012 is a deficient number, since it is larger than the sum of its proper divisors (900842266).

1201123012 is a wasteful number, since it uses less digits than its factorization.

1201123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300280757 (or 300280755 counting only the distinct ones).

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

The square root of 1201123012 is about 34657.2216428265. The cubic root of 1201123012 is about 1062.9899598067.

Adding to 1201123012 its reverse (2103211021), we get a palindrome (3304334033).

The spelling of 1201123012 in words is "one billion, two hundred one million, one hundred twenty-three thousand, twelve".