1021020204 has 24 divisors (see below), whose sum is σ = 2522521008. Its totient is φ = 320320000.

The previous prime is 1021020199. The next prime is 1021020227. The reversal of 1021020204 is 4020201201.

1021020204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1021020204.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502297 + ... + 2502704.

It is an arithmetic number, because the mean of its divisors is an integer number (105105042).

Almost surely, 2^1021020204 is an apocalyptic number.

It is an amenable number.

1021020204 is an abundant number, since it is smaller than the sum of its proper divisors (1501500804).

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

1021020204 is a wasteful number, since it uses less digits than its factorization.

1021020204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005025 (or 5005023 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1021020204 is about 31953.4067667283. The cubic root of 1021020204 is about 1006.9582057419.

Adding to 1021020204 its reverse (4020201201), we get a palindrome (5041221405).

It can be divided in two parts, 102 and 1020204, that added together give a triangular number (1020306 = T₁₄₂₈).

The spelling of 1021020204 in words is "one billion, twenty-one million, twenty thousand, two hundred four".