1021300012 has 6 divisors (see below), whose sum is σ = 1787275028. Its totient is φ = 510650004.

The previous prime is 1021300001. The next prime is 1021300043. The reversal of 1021300012 is 2100031201.

It is a super-2 number, since 2×1021300012² = 2086107429022400288, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 127662498 + ... + 127662505.

Almost surely, 2^1021300012 is an apocalyptic number.

It is an amenable number.

1021300012 is a deficient number, since it is larger than the sum of its proper divisors (765975016).

1021300012 is a wasteful number, since it uses less digits than its factorization.

1021300012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255325007 (or 255325005 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1021300012 is about 31957.7848418816. The cubic root of 1021300012 is about 1007.0501821221.

Adding to 1021300012 its reverse (2100031201), we get a palindrome (3121331213).

The spelling of 1021300012 in words is "one billion, twenty-one million, three hundred thousand, twelve".