1312113012 has 24 divisors (see below), whose sum is σ = 3498968256. Its totient is φ = 374889408.

The previous prime is 1312113007. The next prime is 1312113029. The reversal of 1312113012 is 2103112131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1312112982 and 1312113000.

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, 7810113 + ... + 7810280.

It is an arithmetic number, because the mean of its divisors is an integer number (145790344).

Almost surely, 2^1312113012 is an apocalyptic number.

1312113012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312113012 is an abundant number, since it is smaller than the sum of its proper divisors (2186855244).

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

1312113012 is a wasteful number, since it uses less digits than its factorization.

1312113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15620407 (or 15620405 counting only the distinct ones).

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

The square root of 1312113012 is about 36223.1005299105. The cubic root of 1312113012 is about 1094.7721666893.

Adding to 1312113012 its reverse (2103112131), we get a palindrome (3415225143).

The spelling of 1312113012 in words is "one billion, three hundred twelve million, one hundred thirteen thousand, twelve".