1200123970 has 8 divisors (see below), whose sum is σ = 2160223164. Its totient is φ = 480049584.

The previous prime is 1200123949. The next prime is 1200123979. The reversal of 1200123970 is 793210021.

It can be written as a sum of positive squares in 2 ways, for example, as 1114024129 + 86099841 = 33377^2 + 9279^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1200123979) 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, 60006189 + ... + 60006208.

Almost surely, 2^1200123970 is an apocalyptic number.

1200123970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200123970 is a deficient number, since it is larger than the sum of its proper divisors (960099194).

1200123970 is a wasteful number, since it uses less digits than its factorization.

1200123970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120012404.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 1200123970 is about 34642.8054579880. The cubic root of 1200123970 is about 1062.6951617511.

Adding to 1200123970 its reverse (793210021), we get a palindrome (1993333991).

The spelling of 1200123970 in words is "one billion, two hundred million, one hundred twenty-three thousand, nine hundred seventy".