331311220001 has 16 divisors (see below), whose sum is σ = 334822771584. Its totient is φ = 327817444224.

The previous prime is 331311219959. The next prime is 331311220003. The reversal of 331311220001 is 100022113133.

It is a cyclic number.

It is not a de Polignac number, because 331311220001 - 2⁶ = 331311219937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331311220003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56991971 + ... + 56997783.

It is an arithmetic number, because the mean of its divisors is an integer number (20926423224).

Almost surely, 2^331311220001 is an apocalyptic number.

It is an amenable number.

331311220001 is a deficient number, since it is larger than the sum of its proper divisors (3511551583).

331311220001 is a wasteful number, since it uses less digits than its factorization.

331311220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7240.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 331311220001 its reverse (100022113133), we get a palindrome (431333333134).

The spelling of 331311220001 in words is "three hundred thirty-one billion, three hundred eleven million, two hundred twenty thousand, one".