1312233112 has 8 divisors (see below), whose sum is σ = 2460437100. Its totient is φ = 656116552.

The previous prime is 1312233067. The next prime is 1312233121. The reversal of 1312233112 is 2113322131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1312233112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82014562 + ... + 82014577.

Almost surely, 2^1312233112 is an apocalyptic number.

It is an amenable number.

1312233112 is a deficient number, since it is larger than the sum of its proper divisors (1148203988).

1312233112 is a wasteful number, since it uses less digits than its factorization.

1312233112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164029145 (or 164029141 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 1312233112 is about 36224.7582738657. The cubic root of 1312233112 is about 1094.8055678076.

Adding to 1312233112 its reverse (2113322131), we get a palindrome (3425555243).

The spelling of 1312233112 in words is "one billion, three hundred twelve million, two hundred thirty-three thousand, one hundred twelve".