1121333121 has 6 divisors (see below), whose sum is σ = 1619703410. Its totient is φ = 747555408.

The previous prime is 1121333119. The next prime is 1121333153. The reversal of 1121333121 is 1213331211.

It can be written as a sum of positive squares in only one way, i.e., 709689600 + 411643521 = 26640^2 + 20289^2 .

It is not a de Polignac number, because 1121333121 - 2¹ = 1121333119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121333094 and 1121333103.

It is not an unprimeable number, because it can be changed into a prime (1121333021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62296276 + ... + 62296293.

Almost surely, 2^1121333121 is an apocalyptic number.

It is an amenable number.

1121333121 is a deficient number, since it is larger than the sum of its proper divisors (498370289).

1121333121 is a wasteful number, since it uses less digits than its factorization.

1121333121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124592575 (or 124592572 counting only the distinct ones).

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

The square root of 1121333121 is about 33486.3124425488. The cubic root of 1121333121 is about 1038.9106940766.

Adding to 1121333121 its reverse (1213331211), we get a palindrome (2334664332).

The spelling of 1121333121 in words is "one billion, one hundred twenty-one million, three hundred thirty-three thousand, one hundred twenty-one".