1000020033 has 8 divisors (see below), whose sum is σ = 1481511200. Its totient is φ = 666680004.

The previous prime is 1000020029. The next prime is 1000020107. The reversal of 1000020033 is 3300200001.

It is a happy number.

It is not a de Polignac number, because 1000020033 - 2² = 1000020029 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 a junction number, because it is equal to n+sod(n) for n = 1000019997 and 1000020024.

It is not an unprimeable number, because it can be changed into a prime (1000020023) 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, 18518863 + ... + 18518916.

It is an arithmetic number, because the mean of its divisors is an integer number (185188900).

Almost surely, 2^1000020033 is an apocalyptic number.

It is an amenable number.

1000020033 is a deficient number, since it is larger than the sum of its proper divisors (481491167).

1000020033 is an equidigital number, since it uses as much as digits as its factorization.

1000020033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37037788 (or 37037782 counting only the distinct ones).

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

The square root of 1000020033 is about 31623.0933496393. The cubic root of 1000020033 is about 1000.0066776221.

Adding to 1000020033 its reverse (3300200001), we get a palindrome (4300220034).

The spelling of 1000020033 in words is "one billion, twenty thousand, thirty-three".