13111231310212 has 72 divisors (see below), whose sum is σ = 26787870735360. Its totient is φ = 5598662509440.

The previous prime is 13111231310171. The next prime is 13111231310227. The reversal of 13111231310212 is 21201313211131.

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, 141728989 + ... + 141821467.

Almost surely, 2^{13111231310212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13111231310212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13393935367680).

13111231310212 is an abundant number, since it is smaller than the sum of its proper divisors (13676639425148).

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

13111231310212 is a wasteful number, since it uses less digits than its factorization.

13111231310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95121 (or 95112 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 13111231310212 its reverse (21201313211131), we get a palindrome (34312544521343).

The spelling of 13111231310212 in words is "thirteen trillion, one hundred eleven billion, two hundred thirty-one million, three hundred ten thousand, two hundred twelve".