2001031201 has 8 divisors (see below), whose sum is σ = 2166865064. Its totient is φ = 1836898560.

The previous prime is 2001031133. The next prime is 2001031213. The reversal of 2001031201 is 1021301002.

It can be written as a sum of positive squares in 4 ways, for example, as 448592400 + 1552438801 = 21180^2 + 39401^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2001031201 - 2²³ = 1992642593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001038201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422856 + ... + 427561.

It is an arithmetic number, because the mean of its divisors is an integer number (270858133).

Almost surely, 2^2001031201 is an apocalyptic number.

It is an amenable number.

2001031201 is a deficient number, since it is larger than the sum of its proper divisors (165833863).

2001031201 is a wasteful number, since it uses less digits than its factorization.

2001031201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850611.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2001031201 is about 44732.8872419387. The cubic root of 2001031201 is about 1260.1375513308.

Adding to 2001031201 its reverse (1021301002), we get a palindrome (3022332203).

The spelling of 2001031201 in words is "two billion, one million, thirty-one thousand, two hundred one".