1121310313 has 4 divisors (see below), whose sum is σ = 1137103488. Its totient is φ = 1105517140.

The previous prime is 1121310301. The next prime is 1121310319. The reversal of 1121310313 is 3130131211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121310313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121310319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7896481 + ... + 7896622.

It is an arithmetic number, because the mean of its divisors is an integer number (284275872).

Almost surely, 2^1121310313 is an apocalyptic number.

It is an amenable number.

1121310313 is a deficient number, since it is larger than the sum of its proper divisors (15793175).

1121310313 is an equidigital number, since it uses as much as digits as its factorization.

1121310313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15793174.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1121310313 is about 33485.9718837605. The cubic root of 1121310313 is about 1038.9036501883.

Adding to 1121310313 its reverse (3130131211), we get a palindrome (4251441524).

The spelling of 1121310313 in words is "one billion, one hundred twenty-one million, three hundred ten thousand, three hundred thirteen".