1311301355 has 32 divisors (see below), whose sum is σ = 1973268864. Its totient is φ = 814334976.

The previous prime is 1311301351. The next prime is 1311301367. The reversal of 1311301355 is 5531031131.

It is not a de Polignac number, because 1311301355 - 2² = 1311301351 is a prime.

It is a super-2 number, since 2×1311301355² = 3439022487249672050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311301355.

It is not an unprimeable number, because it can be changed into a prime (1311301351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3074 + ... + 51303.

It is an arithmetic number, because the mean of its divisors is an integer number (61664652).

Almost surely, 2^1311301355 is an apocalyptic number.

1311301355 is a deficient number, since it is larger than the sum of its proper divisors (661967509).

1311301355 is a wasteful number, since it uses less digits than its factorization.

1311301355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54455.

The product of its (nonzero) digits is 675, while the sum is 23.

The square root of 1311301355 is about 36211.8952141420. The cubic root of 1311301355 is about 1094.5463825867.

Adding to 1311301355 its reverse (5531031131), we get a palindrome (6842332486).

The spelling of 1311301355 in words is "one billion, three hundred eleven million, three hundred one thousand, three hundred fifty-five".