13313220111231 has 8 divisors (see below), whose sum is σ = 18230715828144. Its totient is φ = 8635602234240.

The previous prime is 13313220111229. The next prime is 13313220111239. The reversal of 13313220111231 is 13211102231331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13313220111231 - 2¹ = 13313220111229 is a prime.

It is a super-2 number, since 2×13313220111231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313220111239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59969459850 + ... + 59969460071.

It is an arithmetic number, because the mean of its divisors is an integer number (2278839478518).

Almost surely, 2^{13313220111231} is an apocalyptic number.

13313220111231 is a deficient number, since it is larger than the sum of its proper divisors (4917495716913).

13313220111231 is a wasteful number, since it uses less digits than its factorization.

13313220111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119938919961.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 13313220111231 its reverse (13211102231331), we get a palindrome (26524322342562).

The spelling of 13313220111231 in words is "thirteen trillion, three hundred thirteen billion, two hundred twenty million, one hundred eleven thousand, two hundred thirty-one".