1200451012 has 12 divisors (see below), whose sum is σ = 2102039100. Its totient is φ = 599868416.

The previous prime is 1200450997. The next prime is 1200451019. The reversal of 1200451012 is 2101540021.

It can be written as a sum of positive squares in 2 ways, for example, as 1121312196 + 79138816 = 33486^2 + 8896^2 .

It is not an unprimeable number, because it can be changed into a prime (1200451019) 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, 81637 + ... + 95212.

It is an arithmetic number, because the mean of its divisors is an integer number (175169925).

Almost surely, 2^1200451012 is an apocalyptic number.

It is an amenable number.

1200451012 is a deficient number, since it is larger than the sum of its proper divisors (901588088).

1200451012 is a wasteful number, since it uses less digits than its factorization.

1200451012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178550 (or 178548 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1200451012 is about 34647.5253373167. The cubic root of 1200451012 is about 1062.7916835536.

Adding to 1200451012 its reverse (2101540021), we get a palindrome (3301991033).

The spelling of 1200451012 in words is "one billion, two hundred million, four hundred fifty-one thousand, twelve".