1020000033 has 56 divisors (see below), whose sum is σ = 1685913152. Its totient is φ = 612849888.

The previous prime is 1020000013. The next prime is 1020000061. The reversal of 1020000033 is 3300000201.

It is a happy number.

It is not a de Polignac number, because 1020000033 - 2⁹ = 1019999521 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020000013) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 406260 + ... + 408762.

It is an arithmetic number, because the mean of its divisors is an integer number (30105592).

Almost surely, 2^1020000033 is an apocalyptic number.

1020000033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1020000033 is a deficient number, since it is larger than the sum of its proper divisors (665913119).

1020000033 is an equidigital number, since it uses as much as digits as its factorization.

1020000033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2562 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 1020000033 is about 31937.4393619777. The cubic root of 1020000033 is about 1006.6227204158.

Adding to 1020000033 its reverse (3300000201), we get a palindrome (4320000234).

The spelling of 1020000033 in words is "one billion, twenty million, thirty-three", and thus it is an aban number and an uban number.