13113111231320 has 64 divisors (see below), whose sum is σ = 29543629500000. Its totient is φ = 5238291944448.

The previous prime is 13113111231313. The next prime is 13113111231331. The reversal of 13113111231320 is 2313211131131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115291199 + ... + 115404881.

Almost surely, 2^{13113111231320} is an apocalyptic number.

13113111231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113111231320 is an abundant number, since it is smaller than the sum of its proper divisors (16430518268680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13113111231320 is a wasteful number, since it uses less digits than its factorization.

13113111231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117492 (or 117488 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 13113111231320 its reverse (2313211131131), we get a palindrome (15426322362451).

The spelling of 13113111231320 in words is "thirteen trillion, one hundred thirteen billion, one hundred eleven million, two hundred thirty-one thousand, three hundred twenty".