1010021028 has 24 divisors (see below), whose sum is σ = 2357261088. Its totient is φ = 336595776.

The previous prime is 1010021021. The next prime is 1010021041. The reversal of 1010021028 is 8201200101.

1010021028 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 = 1010020998 and 1010021016.

It is not an unprimeable number, because it can be changed into a prime (1010021021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71175 + ... + 84177.

It is an arithmetic number, because the mean of its divisors is an integer number (98219212).

Almost surely, 2^1010021028 is an apocalyptic number.

It is an amenable number.

1010021028 is an abundant number, since it is smaller than the sum of its proper divisors (1347240060).

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

1010021028 is a wasteful number, since it uses less digits than its factorization.

1010021028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19483 (or 19481 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1010021028 is about 31780.8279942484. The cubic root of 1010021028 is about 1003.3292464842.

Adding to 1010021028 its reverse (8201200101), we get a palindrome (9211221129).

The spelling of 1010021028 in words is "one billion, ten million, twenty-one thousand, twenty-eight".