13113230121220 has 48 divisors (see below), whose sum is σ = 29020193616960. Its totient is φ = 4963557757824.

The previous prime is 13113230121193. The next prime is 13113230121227. The reversal of 13113230121220 is 2212103231131.

It is a junction number, because it is equal to n+sod(n) for n = 13113230121191 and 13113230121200.

It is not an unprimeable number, because it can be changed into a prime (13113230121227) 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, 19340914 + ... + 20007433.

It is an arithmetic number, because the mean of its divisors is an integer number (604587367020).

Almost surely, 2^{13113230121220} is an apocalyptic number.

13113230121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113230121220 is an abundant number, since it is smaller than the sum of its proper divisors (15906963495740).

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

13113230121220 is a wasteful number, since it uses less digits than its factorization.

13113230121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39349252 (or 39349250 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13113230121220 its reverse (2212103231131), we get a palindrome (15325333352351).

The spelling of 13113230121220 in words is "thirteen trillion, one hundred thirteen billion, two hundred thirty million, one hundred twenty-one thousand, two hundred twenty".