1121311313 has 8 divisors (see below), whose sum is σ = 1194383232. Its totient is φ = 1049029696.

The previous prime is 1121311291. The next prime is 1121311319. The reversal of 1121311313 is 3131131211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121311313 - 2⁸ = 1121311057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121311291 and 1121311300.

It is not an unprimeable number, because it can be changed into a prime (1121311319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194645 + ... + 200322.

It is an arithmetic number, because the mean of its divisors is an integer number (149297904).

Almost surely, 2^1121311313 is an apocalyptic number.

It is an amenable number.

1121311313 is a deficient number, since it is larger than the sum of its proper divisors (73071919).

1121311313 is a wasteful number, since it uses less digits than its factorization.

1121311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395151.

The product of its digits is 54, while the sum is 17.

The square root of 1121311313 is about 33485.9868153829. The cubic root of 1121311313 is about 1038.9039590244.

Adding to 1121311313 its reverse (3131131211), we get a palindrome (4252442524).

The spelling of 1121311313 in words is "one billion, one hundred twenty-one million, three hundred eleven thousand, three hundred thirteen".