1121145424 has 20 divisors (see below), whose sum is σ = 2482536544. Its totient is φ = 480490848.

The previous prime is 1121145409. The next prime is 1121145449. The reversal of 1121145424 is 4245411211.

It is a super-2 number, since 2×1121145424² = 2513934123512279552, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5005002 + ... + 5005225.

Almost surely, 2^1121145424 is an apocalyptic number.

1121145424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1121145424 is an abundant number, since it is smaller than the sum of its proper divisors (1361391120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121145424 is a wasteful number, since it uses less digits than its factorization.

1121145424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010242 (or 10010236 counting only the distinct ones).

The product of its digits is 1280, while the sum is 25.

The square root of 1121145424 is about 33483.5097324041. The cubic root of 1121145424 is about 1038.8527239997.

Adding to 1121145424 its reverse (4245411211), we get a palindrome (5366556635).

The spelling of 1121145424 in words is "one billion, one hundred twenty-one million, one hundred forty-five thousand, four hundred twenty-four".