1121312324 has 18 divisors (see below), whose sum is σ = 2156905422. Its totient is φ = 509687200.

The previous prime is 1121312317. The next prime is 1121312327. The reversal of 1121312324 is 4232131211.

It can be written as a sum of positive squares in only one way, i.e., 923065924 + 198246400 = 30382^2 + 14080^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121312296 and 1121312305.

It is not an unprimeable number, because it can be changed into a prime (1121312327) 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, 1157897 + ... + 1158864.

It is an arithmetic number, because the mean of its divisors is an integer number (119828079).

Almost surely, 2^1121312324 is an apocalyptic number.

It is an amenable number.

1121312324 is a deficient number, since it is larger than the sum of its proper divisors (1035593098).

1121312324 is a wasteful number, since it uses less digits than its factorization.

1121312324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316787 (or 2316774 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 1121312324 is about 33486.0019112464. The cubic root of 1121312324 is about 1038.9042712576.

Adding to 1121312324 its reverse (4232131211), we get a palindrome (5353443535).

The spelling of 1121312324 in words is "one billion, one hundred twenty-one million, three hundred twelve thousand, three hundred twenty-four".