1312120112 has 30 divisors (see below), whose sum is σ = 2700581988. Its totient is φ = 617466112.

The previous prime is 1312120097. The next prime is 1312120127. The reversal of 1312120112 is 2110212131.

It is an interprime number because it is at equal distance from previous prime (1312120097) and next prime (1312120127).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 137258 + ... + 146505.

Almost surely, 2^1312120112 is an apocalyptic number.

It is an amenable number.

1312120112 is an abundant number, since it is smaller than the sum of its proper divisors (1388461876).

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

1312120112 is a wasteful number, since it uses less digits than its factorization.

1312120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283805 (or 283782 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1312120112 is about 36223.1985335365. The cubic root of 1312120112 is about 1094.7741413333.

Adding to 1312120112 its reverse (2110212131), we get a palindrome (3422332243).

It can be divided in two parts, 13121 and 20112, that added together give a palindrome (33233).

The spelling of 1312120112 in words is "one billion, three hundred twelve million, one hundred twenty thousand, one hundred twelve".