1312030312 has 16 divisors (see below), whose sum is σ = 2471091840. Its totient is φ = 653072496.

The previous prime is 1312030297. The next prime is 1312030367. The reversal of 1312030312 is 2130302131.

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, 365938 + ... + 369505.

It is an arithmetic number, because the mean of its divisors is an integer number (154443240).

Almost surely, 2^1312030312 is an apocalyptic number.

It is an amenable number.

1312030312 is a deficient number, since it is larger than the sum of its proper divisors (1159061528).

1312030312 is a wasteful number, since it uses less digits than its factorization.

1312030312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735672 (or 735668 counting only the distinct ones).

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

The square root of 1312030312 is about 36221.9589751852. The cubic root of 1312030312 is about 1094.7491657335.

Adding to 1312030312 its reverse (2130302131), we get a palindrome (3442332443).

The spelling of 1312030312 in words is "one billion, three hundred twelve million, thirty thousand, three hundred twelve".