1121440324 has 48 divisors (see below), whose sum is σ = 2062468800. Its totient is φ = 532861056.

The previous prime is 1121440319. The next prime is 1121440337. The reversal of 1121440324 is 4230441211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1121440295 and 1121440304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2531247 + ... + 2531689.

It is an arithmetic number, because the mean of its divisors is an integer number (42968100).

Almost surely, 2^1121440324 is an apocalyptic number.

It is an amenable number.

1121440324 is a deficient number, since it is larger than the sum of its proper divisors (941028476).

1121440324 is a wasteful number, since it uses less digits than its factorization.

1121440324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1121440324 is about 33487.9131030884. The cubic root of 1121440324 is about 1038.9438007399.

Adding to 1121440324 its reverse (4230441211), we get a palindrome (5351881535).

It can be divided in two parts, 112144032 and 4, that multiplied together give a triangular number (448576128 = T₂₉₉₅₂).

The spelling of 1121440324 in words is "one billion, one hundred twenty-one million, four hundred forty thousand, three hundred twenty-four".