13311303231 has 16 divisors (see below), whose sum is σ = 18159995520. Its totient is φ = 8670252960.

The previous prime is 13311303223. The next prime is 13311303241. The reversal of 13311303231 is 13230311331.

It is not a de Polignac number, because 13311303231 - 2³ = 13311303223 is a prime.

It is a super-2 number, since 2×13311303231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13311303198 and 13311303207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311303241) 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, 201840 + ... + 259541.

It is an arithmetic number, because the mean of its divisors is an integer number (1134999720).

Almost surely, 2^13311303231 is an apocalyptic number.

13311303231 is a deficient number, since it is larger than the sum of its proper divisors (4848692289).

13311303231 is a wasteful number, since it uses less digits than its factorization.

13311303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461606.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 13311303231 its reverse (13230311331), we get a palindrome (26541614562).

The spelling of 13311303231 in words is "thirteen billion, three hundred eleven million, three hundred three thousand, two hundred thirty-one".