1031200312 has 16 divisors (see below), whose sum is σ = 1940385600. Its totient is φ = 513764160.

The previous prime is 1031200271. The next prime is 1031200327. The reversal of 1031200312 is 2130021301.

It is a junction number, because it is equal to n+sod(n) for n = 1031200292 and 1031200301.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227112 + ... + 231607.

It is an arithmetic number, because the mean of its divisors is an integer number (121274100).

Almost surely, 2^1031200312 is an apocalyptic number.

It is an amenable number.

1031200312 is a deficient number, since it is larger than the sum of its proper divisors (909185288).

1031200312 is a wasteful number, since it uses less digits than its factorization.

1031200312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459006 (or 459002 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1031200312 is about 32112.3077962329. The cubic root of 1031200312 is about 1010.2937785407.

Adding to 1031200312 its reverse (2130021301), we get a palindrome (3161221613).

The spelling of 1031200312 in words is "one billion, thirty-one million, two hundred thousand, three hundred twelve".