1131424424 has 16 divisors (see below), whose sum is σ = 2284607220. Its totient is φ = 522195840.

The previous prime is 1131424421. The next prime is 1131424429. The reversal of 1131424424 is 4244241311.

It can be written as a sum of positive squares in 2 ways, for example, as 1112222500 + 19201924 = 33350^2 + 4382^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 1131424393 and 1131424402.

It is not an unprimeable number, because it can be changed into a prime (1131424421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5439437 + ... + 5439644.

Almost surely, 2^1131424424 is an apocalyptic number.

It is an amenable number.

1131424424 is an abundant number, since it is smaller than the sum of its proper divisors (1153182796).

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

1131424424 is a wasteful number, since it uses less digits than its factorization.

1131424424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10879100 (or 10879096 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 1131424424 is about 33636.6529845049. The cubic root of 1131424424 is about 1042.0179090476.

Adding to 1131424424 its reverse (4244241311), we get a palindrome (5375665735).

The spelling of 1131424424 in words is "one billion, one hundred thirty-one million, four hundred twenty-four thousand, four hundred twenty-four".