1000331201 has 4 divisors (see below), whose sum is σ = 1000446804. Its totient is φ = 1000215600.

The previous prime is 1000331197. The next prime is 1000331237. The reversal of 1000331201 is 1021330001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 146289025 + 854042176 = 12095^2 + 29224^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000331201 - 2² = 1000331197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000331251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43670 + ... + 62511.

It is an arithmetic number, because the mean of its divisors is an integer number (250111701).

Almost surely, 2^1000331201 is an apocalyptic number.

It is an amenable number.

1000331201 is a deficient number, since it is larger than the sum of its proper divisors (115603).

1000331201 is an equidigital number, since it uses as much as digits as its factorization.

1000331201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115602.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1000331201 is about 31628.0129157682. The cubic root of 1000331201 is about 1000.1103881473.

Adding to 1000331201 its reverse (1021330001), we get a palindrome (2021661202).

The spelling of 1000331201 in words is "one billion, three hundred thirty-one thousand, two hundred one".