1020033021 has 32 divisors (see below), whose sum is σ = 1607344128. Its totient is φ = 563065920.

The previous prime is 1020033011. The next prime is 1020033023. The reversal of 1020033021 is 1203300201.

It is a happy number.

It is not a de Polignac number, because 1020033021 - 2⁵ = 1020032989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020032988 and 1020033006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020033023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 502210 + ... + 504236.

It is an arithmetic number, because the mean of its divisors is an integer number (50229504).

Almost surely, 2^1020033021 is an apocalyptic number.

It is an amenable number.

1020033021 is a deficient number, since it is larger than the sum of its proper divisors (587311107).

1020033021 is a wasteful number, since it uses less digits than its factorization.

1020033021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1020033021 is about 31937.9558049666. The cubic root of 1020033021 is about 1006.6335720862.

Adding to 1020033021 its reverse (1203300201), we get a palindrome (2223333222).

The spelling of 1020033021 in words is "one billion, twenty million, thirty-three thousand, twenty-one".