1131111424 has 33 divisors (see below), whose sum is σ = 2263271691. Its totient is φ = 565017600.

The previous prime is 1131111419. The next prime is 1131111461. The reversal of 1131111424 is 4241111311.

The square root of 1131111424 is 33632.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1075699 + ... + 1076749.

Almost surely, 2^1131111424 is an apocalyptic number.

1131111424 is the 33632-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131111424

1131111424 is an abundant number, since it is smaller than the sum of its proper divisors (1132160267).

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

1131111424 is an frugal number, since it uses more digits than its factorization.

1131111424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122 (or 1053 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The cubic root of 1131111424 is about 1041.9218113973.

Adding to 1131111424 its reverse (4241111311), we get a palindrome (5372222735).

The spelling of 1131111424 in words is "one billion, one hundred thirty-one million, one hundred eleven thousand, four hundred twenty-four".