331220030013 has 24 divisors (see below), whose sum is σ = 496207883808. Its totient is φ = 220786934544.

The previous prime is 331220029999. The next prime is 331220030023. The reversal of 331220030013 is 310030022133.

331220030013 is a `hidden beast` number, since 331 + 2 + 20 + 0 + 300 + 13 = 666.

It is not a de Polignac number, because 331220030013 - 2²⁸ = 330951594557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220030023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2070270 + ... + 2224512.

It is an arithmetic number, because the mean of its divisors is an integer number (20675328492).

Almost surely, 2^331220030013 is an apocalyptic number.

It is an amenable number.

331220030013 is a deficient number, since it is larger than the sum of its proper divisors (164987853795).

331220030013 is an equidigital number, since it uses as much as digits as its factorization.

331220030013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163095 (or 163083 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 331220030013 its reverse (310030022133), we get a palindrome (641250052146).

The spelling of 331220030013 in words is "three hundred thirty-one billion, two hundred twenty million, thirty thousand, thirteen".