331201111001 has 16 divisors (see below), whose sum is σ = 335960776320. Its totient is φ = 326473701120.

The previous prime is 331201110917. The next prime is 331201111063. The reversal of 331201111001 is 100111102133.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 331201111001 - 2¹⁴ = 331201094617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331201111201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29405711 + ... + 29416971.

It is an arithmetic number, because the mean of its divisors is an integer number (20997548520).

Almost surely, 2^331201111001 is an apocalyptic number.

It is an amenable number.

331201111001 is a deficient number, since it is larger than the sum of its proper divisors (4759665319).

331201111001 is a wasteful number, since it uses less digits than its factorization.

331201111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12656.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 331201111001 its reverse (100111102133), we get a palindrome (431312213134).

The spelling of 331201111001 in words is "three hundred thirty-one billion, two hundred one million, one hundred eleven thousand, one".