1312113320 has 32 divisors (see below), whose sum is σ = 3374006400. Its totient is φ = 449867328.

The previous prime is 1312113317. The next prime is 1312113337. The reversal of 1312113320 is 233112131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2342780 + ... + 2343339.

It is an arithmetic number, because the mean of its divisors is an integer number (105437700).

Almost surely, 2^1312113320 is an apocalyptic number.

1312113320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312113320 is an abundant number, since it is smaller than the sum of its proper divisors (2061893080).

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

1312113320 is a wasteful number, since it uses less digits than its factorization.

1312113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686137 (or 4686133 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1312113320 is about 36223.1047813409. The cubic root of 1312113320 is about 1094.7722523501.

Adding to 1312113320 its reverse (233112131), we get a palindrome (1545225451).

The spelling of 1312113320 in words is "one billion, three hundred twelve million, one hundred thirteen thousand, three hundred twenty".