1121312313 has 24 divisors (see below), whose sum is σ = 1767994176. Its totient is φ = 679168800.

The previous prime is 1121312279. The next prime is 1121312317. The reversal of 1121312313 is 3132131211.

It is not a de Polignac number, because 1121312313 - 2²⁴ = 1104535097 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1121312317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262908 + ... + 267138.

It is an arithmetic number, because the mean of its divisors is an integer number (73666424).

Almost surely, 2^1121312313 is an apocalyptic number.

It is an amenable number.

1121312313 is a deficient number, since it is larger than the sum of its proper divisors (646681863).

1121312313 is a wasteful number, since it uses less digits than its factorization.

1121312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925 (or 6922 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1121312313 is about 33486.0017469987. The cubic root of 1121312313 is about 1038.9042678604.

Adding to 1121312313 its reverse (3132131211), we get a palindrome (4253443524).

The spelling of 1121312313 in words is "one billion, one hundred twenty-one million, three hundred twelve thousand, three hundred thirteen".