1021503012 has 48 divisors (see below), whose sum is σ = 2443913472. Its totient is φ = 331904160.

The previous prime is 1021502981. The next prime is 1021503017. The reversal of 1021503012 is 2103051201.

1021503012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021502982 and 1021503000.

It is not an unprimeable number, because it can be changed into a prime (1021503017) 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, 292903 + ... + 296369.

It is an arithmetic number, because the mean of its divisors is an integer number (50914864).

Almost surely, 2^1021503012 is an apocalyptic number.

1021503012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021503012 is an abundant number, since it is smaller than the sum of its proper divisors (1422410460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021503012 is a wasteful number, since it uses less digits than its factorization.

1021503012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4088 (or 4086 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1021503012 is about 31960.9607490138. The cubic root of 1021503012 is about 1007.1169002400.

Adding to 1021503012 its reverse (2103051201), we get a palindrome (3124554213).

The spelling of 1021503012 in words is "one billion, twenty-one million, five hundred three thousand, twelve".