1311312304 has 20 divisors (see below), whose sum is σ = 2546169376. Its totient is φ = 654236352.

The previous prime is 1311312283. The next prime is 1311312313. The reversal of 1311312304 is 4032131131.

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, 81099 + ... + 95914.

Almost surely, 2^1311312304 is an apocalyptic number.

It is an amenable number.

1311312304 is a deficient number, since it is larger than the sum of its proper divisors (1234857072).

1311312304 is a wasteful number, since it uses less digits than its factorization.

1311312304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177484 (or 177478 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1311312304 is about 36212.0463934310. The cubic root of 1311312304 is about 1094.5494289637.

Adding to 1311312304 its reverse (4032131131), we get a palindrome (5343443435).

The spelling of 1311312304 in words is "one billion, three hundred eleven million, three hundred twelve thousand, three hundred four".