13111111221130 has 48 divisors (see below), whose sum is σ = 25664708810520. Its totient is φ = 4820248602624.

The previous prime is 13111111221059. The next prime is 13111111221161. The reversal of 13111111221130 is 3112211111131.

It can be written as a sum of positive squares in 12 ways, for example, as 594013942729 + 12517097278401 = 770723^2 + 3537951^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13111111221098 and 13111111221107.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16254415 + ... + 17041954.

Almost surely, 2^{13111111221130} is an apocalyptic number.

13111111221130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13111111221130 is a deficient number, since it is larger than the sum of its proper divisors (12553597589390).

13111111221130 is a wasteful number, since it uses less digits than its factorization.

13111111221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33296635 (or 33296622 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 13111111221130 its reverse (3112211111131), we get a palindrome (16223322332261).

The spelling of 13111111221130 in words is "thirteen trillion, one hundred eleven billion, one hundred eleven million, two hundred twenty-one thousand, one hundred thirty".