1000100033 has 2 divisors, whose sum is σ = 1000100034.
Its totient is φ = 1000100032.
The previous prime is 1000100009. The next prime is 1000100051. The reversal of 1000100033 is 3300010001.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 874503184 + 125596849 = 29572^2 + 11207^2
It is an emirp because it is prime and its reverse (3300010001) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1000100033 - 214 = 1000083649 is a prime.
It is not a weakly prime, because it can be changed into another prime (1000108033) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500050016 + 500050017.
It is an arithmetic number, because the mean of its divisors is an integer number (500050017).
Almost surely, 21000100033 is an apocalyptic number.
It is an amenable number.
1000100033 is a deficient number, since it is larger than the sum of its proper divisors (1).
1000100033 is an equidigital number, since it uses as much as digits as its factorization.
1000100033 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 9, while the sum is 8.
The square root of 1000100033 is about 31624.3582227371.
The cubic root of 1000100033 is about 1000.0333432216.
Adding to 1000100033 its reverse (3300010001), we get a palindrome (4300110034).
The spelling of 1000100033 in words is "one billion, one hundred thousand, thirty-three".