1313230912 has 28 divisors (see below), whose sum is σ = 2978221120. Its totient is φ = 562813056.

The previous prime is 1313230907. The next prime is 1313230913. The reversal of 1313230912 is 2190323131.

It is a tau number, because it is divible by the number of its divisors (28).

It is not an unprimeable number, because it can be changed into a prime (1313230913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1465212 + ... + 1466107.

It is an arithmetic number, because the mean of its divisors is an integer number (106365040).

Almost surely, 2^1313230912 is an apocalyptic number.

It is an amenable number.

1313230912 is an abundant number, since it is smaller than the sum of its proper divisors (1664990208).

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

1313230912 is an equidigital number, since it uses as much as digits as its factorization.

1313230912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931338 (or 2931328 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1313230912 is about 36238.5280054254. The cubic root of 1313230912 is about 1095.0829880877.

It can be divided in two parts, 13132 and 30912, that added together give a palindrome (44044).

The spelling of 1313230912 in words is "one billion, three hundred thirteen million, two hundred thirty thousand, nine hundred twelve".