331032001 has 2 divisors, whose sum is σ = 331032002. Its totient is φ = 331032000.

The previous prime is 331031989. The next prime is 331032061. The reversal of 331032001 is 100230133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249671601 + 81360400 = 15801^2 + 9020^2 .

It is an emirp because it is prime and its reverse (100230133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 331032001 - 2⁷ = 331031873 is a prime.

It is not a weakly prime, because it can be changed into another prime (331032061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165516000 + 165516001.

It is an arithmetic number, because the mean of its divisors is an integer number (165516001).

Almost surely, 2^331032001 is an apocalyptic number.

It is an amenable number.

331032001 is a deficient number, since it is larger than the sum of its proper divisors (1).

331032001 is an equidigital number, since it uses as much as digits as its factorization.

331032001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 331032001 is about 18194.2848444230. The cubic root of 331032001 is about 691.7619333497.

Adding to 331032001 its reverse (100230133), we get a palindrome (431262134).

The spelling of 331032001 in words is "three hundred thirty-one million, thirty-two thousand, one".