13211112120 has 32 divisors (see below), whose sum is σ = 39633336720. Its totient is φ = 3522963200.

The previous prime is 13211112113. The next prime is 13211112133. The reversal of 13211112120 is 2121111231.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13211112120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55046181 + ... + 55046420.

Almost surely, 2^13211112120 is an apocalyptic number.

13211112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211112120 is an abundant number, since it is smaller than the sum of its proper divisors (26422224600).

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

13211112120 is a wasteful number, since it uses less digits than its factorization.

13211112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110092615 (or 110092611 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 13211112120 its reverse (2121111231), we get a palindrome (15332223351).

It can be divided in two parts, 1321111 and 2120, that added together give a palindrome (1323231).

The spelling of 13211112120 in words is "thirteen billion, two hundred eleven million, one hundred twelve thousand, one hundred twenty".