1313023012 has 18 divisors (see below), whose sum is σ = 2672940102. Its totient is φ = 562724064.

The previous prime is 1313023009. The next prime is 1313023013. The reversal of 1313023012 is 2103203131.

It can be written as a sum of positive squares in only one way, i.e., 1074135076 + 238887936 = 32774^2 + 15456^2 .

It is not an unprimeable number, because it can be changed into a prime (1313023013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3349353 + ... + 3349744.

Almost surely, 2^1313023012 is an apocalyptic number.

It is an amenable number.

1313023012 is an abundant number, since it is smaller than the sum of its proper divisors (1359917090).

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

1313023012 is a wasteful number, since it uses less digits than its factorization.

1313023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6699115 (or 6699106 counting only the distinct ones).

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

The square root of 1313023012 is about 36235.6593978915. The cubic root of 1313023012 is about 1095.0251968375.

Adding to 1313023012 its reverse (2103203131), we get a palindrome (3416226143).

The spelling of 1313023012 in words is "one billion, three hundred thirteen million, twenty-three thousand, twelve".