13111332113220 has 96 divisors (see below), whose sum is σ = 40416583616640. Its totient is φ = 3149344143360.

The previous prime is 13111332113147. The next prime is 13111332113261. The reversal of 13111332113220 is 2231123311131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91054917 + ... + 91198796.

It is an arithmetic number, because the mean of its divisors is an integer number (421006079340).

Almost surely, 2^{13111332113220} is an apocalyptic number.

13111332113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111332113220 is an abundant number, since it is smaller than the sum of its proper divisors (27305251503420).

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

13111332113220 is a wasteful number, since it uses less digits than its factorization.

13111332113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182253845 (or 182253843 counting only the distinct ones).

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

Adding to 13111332113220 its reverse (2231123311131), we get a palindrome (15342455424351).

The spelling of 13111332113220 in words is "thirteen trillion, one hundred eleven billion, three hundred thirty-two million, one hundred thirteen thousand, two hundred twenty".