1021300312 has 32 divisors (see below), whose sum is σ = 2018343600. Its totient is φ = 483145344.

The previous prime is 1021300249. The next prime is 1021300321. The reversal of 1021300312 is 2130031201.

It is a junction number, because it is equal to n+sod(n) for n = 1021300292 and 1021300301.

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 7 ways as a sum of consecutive naturals, for example, 125718 + ... + 133594.

Almost surely, 2^1021300312 is an apocalyptic number.

It is an amenable number.

1021300312 is a deficient number, since it is larger than the sum of its proper divisors (997043288).

1021300312 is a wasteful number, since it uses less digits than its factorization.

1021300312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755 (or 8751 counting only the distinct ones).

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

The square root of 1021300312 is about 31957.7895355733. The cubic root of 1021300312 is about 1007.0502807268.

Adding to 1021300312 its reverse (2130031201), we get a palindrome (3151331513).

The spelling of 1021300312 in words is "one billion, twenty-one million, three hundred thousand, three hundred twelve".