1312119912 has 16 divisors (see below), whose sum is σ = 3280299840. Its totient is φ = 437373296.

The previous prime is 1312119901. The next prime is 1312119929. The reversal of 1312119912 is 2199112131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312119912.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27335808 + ... + 27335855.

It is an arithmetic number, because the mean of its divisors is an integer number (205018740).

Almost surely, 2^1312119912 is an apocalyptic number.

1312119912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1312119912 is an abundant number, since it is smaller than the sum of its proper divisors (1968179928).

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

1312119912 is a wasteful number, since it uses less digits than its factorization.

1312119912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54671672 (or 54671668 counting only the distinct ones).

The product of its digits is 972, while the sum is 30.

The square root of 1312119912 is about 36223.1957728746. The cubic root of 1312119912 is about 1094.7740857097.

It can be divided in two parts, 13121 and 19912, that added together give a palindrome (33033).

The spelling of 1312119912 in words is "one billion, three hundred twelve million, one hundred nineteen thousand, nine hundred twelve".