13012113012 has 48 divisors (see below), whose sum is σ = 31794602112. Its totient is φ = 4134000640.

The previous prime is 13012113001. The next prime is 13012113029. The reversal of 13012113012 is 21031121031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13012112982 and 13012113000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6333 + ... + 161444.

It is an arithmetic number, because the mean of its divisors is an integer number (662387544).

Almost surely, 2^13012113012 is an apocalyptic number.

13012113012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13012113012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15897301056).

13012113012 is an abundant number, since it is smaller than the sum of its proper divisors (18782489100).

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

13012113012 is a wasteful number, since it uses less digits than its factorization.

13012113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168088 (or 168086 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13012113012 its reverse (21031121031), we get a palindrome (34043234043).

The spelling of 13012113012 in words is "thirteen billion, twelve million, one hundred thirteen thousand, twelve".