13320212331 has 16 divisors (see below), whose sum is σ = 18243039744. Its totient is φ = 8640948384.

The previous prime is 13320212263. The next prime is 13320212359. The reversal of 13320212331 is 13321202331.

It is not a de Polignac number, because 13320212331 - 2⁹ = 13320211819 is a prime.

It is a super-2 number, since 2×13320212331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13320212298 and 13320212307.

It is not an unprimeable number, because it can be changed into a prime (13320214331) 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, 248641 + ... + 297426.

It is an arithmetic number, because the mean of its divisors is an integer number (1140189984).

Almost surely, 2^13320212331 is an apocalyptic number.

13320212331 is a deficient number, since it is larger than the sum of its proper divisors (4922827413).

13320212331 is a wasteful number, since it uses less digits than its factorization.

13320212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546290.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13320212331 its reverse (13321202331), we get a palindrome (26641414662).

The spelling of 13320212331 in words is "thirteen billion, three hundred twenty million, two hundred twelve thousand, three hundred thirty-one".