1312103320 has 64 divisors (see below), whose sum is σ = 3299214240. Its totient is φ = 465484800.

The previous prime is 1312103297. The next prime is 1312103323. The reversal of 1312103320 is 233012131.

It is a junction number, because it is equal to n+sod(n) for n = 1312103294 and 1312103303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312103323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18327 + ... + 54406.

Almost surely, 2^1312103320 is an apocalyptic number.

1312103320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312103320 is an abundant number, since it is smaller than the sum of its proper divisors (1987110920).

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

1312103320 is a wasteful number, since it uses less digits than its factorization.

1312103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72796 (or 72792 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1312103320 is about 36222.9667476313. The cubic root of 1312103320 is about 1094.7694711497.

Adding to 1312103320 its reverse (233012131), we get a palindrome (1545115451).

The spelling of 1312103320 in words is "one billion, three hundred twelve million, one hundred three thousand, three hundred twenty".