1311013204 has 6 divisors (see below), whose sum is σ = 2294273114. Its totient is φ = 655506600.

The previous prime is 1311013199. The next prime is 1311013211. The reversal of 1311013204 is 4023101131.

It can be written as a sum of positive squares in only one way, i.e., 1004763204 + 306250000 = 31698^2 + 17500^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163876647 + ... + 163876654.

Almost surely, 2^1311013204 is an apocalyptic number.

It is an amenable number.

1311013204 is a deficient number, since it is larger than the sum of its proper divisors (983259910).

1311013204 is a wasteful number, since it uses less digits than its factorization.

1311013204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327753305 (or 327753303 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1311013204 is about 36207.9163167394. The cubic root of 1311013204 is about 1094.4662032701.

Adding to 1311013204 its reverse (4023101131), we get a palindrome (5334114335).

The spelling of 1311013204 in words is "one billion, three hundred eleven million, thirteen thousand, two hundred four".