331131220220013 has 16 divisors (see below), whose sum is σ = 442805392848000. Its totient is φ = 220105688725440.

The previous prime is 331131220219973. The next prime is 331131220220027. The reversal of 331131220220013 is 310022022131133.

It is not a de Polignac number, because 331131220220013 - 2¹⁷ = 331131220088941 is a prime.

It is a super-3 number, since 3×331131220220013³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331131220220813) 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, 3047803 + ... + 25914311.

It is an arithmetic number, because the mean of its divisors is an integer number (27675337053000).

Almost surely, 2^{331131220220013} is an apocalyptic number.

It is an amenable number.

331131220220013 is a deficient number, since it is larger than the sum of its proper divisors (111674172627987).

331131220220013 is a wasteful number, since it uses less digits than its factorization.

331131220220013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22880692.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 331131220220013 its reverse (310022022131133), we get a palindrome (641153242351146).

The spelling of 331131220220013 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, two hundred twenty million, two hundred twenty thousand, thirteen".