1200071270 has 32 divisors (see below), whose sum is σ = 2189859840. Its totient is φ = 473441760.

The previous prime is 1200071263. The next prime is 1200071273. The reversal of 1200071270 is 721700021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200071273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821801 + ... + 823259.

It is an arithmetic number, because the mean of its divisors is an integer number (68433120).

Almost surely, 2^1200071270 is an apocalyptic number.

1200071270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200071270 is a deficient number, since it is larger than the sum of its proper divisors (989788570).

1200071270 is a wasteful number, since it uses less digits than its factorization.

1200071270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540.

The product of its (nonzero) digits is 196, while the sum is 20.

The square root of 1200071270 is about 34642.0448299462. The cubic root of 1200071270 is about 1062.6796064540.

Adding to 1200071270 its reverse (721700021), we get a palindrome (1921771291).

The spelling of 1200071270 in words is "one billion, two hundred million, seventy-one thousand, two hundred seventy".