1021000332 has 48 divisors (see below), whose sum is σ = 2688537600. Its totient is φ = 298724160.

The previous prime is 1021000319. The next prime is 1021000333. The reversal of 1021000332 is 2330001201.

It is a happy number.

It is a super-2 number, since 2×1021000332² = 2084883355888220448, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (1021000333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129532 + ... + 137187.

It is an arithmetic number, because the mean of its divisors is an integer number (56011200).

Almost surely, 2^1021000332 is an apocalyptic number.

1021000332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021000332 is an abundant number, since it is smaller than the sum of its proper divisors (1667537268).

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

1021000332 is a wasteful number, since it uses less digits than its factorization.

1021000332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266766 (or 266764 counting only the distinct ones).

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

The square root of 1021000332 is about 31953.0958124561. The cubic root of 1021000332 is about 1006.9516729285.

Adding to 1021000332 its reverse (2330001201), we get a palindrome (3351001533).

The spelling of 1021000332 in words is "one billion, twenty-one million, three hundred thirty-two", and thus it is an aban number.