1131421324 has 24 divisors (see below), whose sum is σ = 2176485696. Its totient is φ = 510354000.

The previous prime is 1131421309. The next prime is 1131421327. The reversal of 1131421324 is 4231241311.

It is a super-2 number, since 2×1131421324² = 2560228424803825952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1131421295 and 1131421304.

It is not an unprimeable number, because it can be changed into a prime (1131421327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92382 + ... + 103909.

It is an arithmetic number, because the mean of its divisors is an integer number (90686904).

Almost surely, 2^1131421324 is an apocalyptic number.

It is an amenable number.

1131421324 is a deficient number, since it is larger than the sum of its proper divisors (1045064372).

1131421324 is a wasteful number, since it uses less digits than its factorization.

1131421324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196437 (or 196435 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 1131421324 is about 33636.6069037886. The cubic root of 1131421324 is about 1042.0169573686.

Adding to 1131421324 its reverse (4231241311), we get a palindrome (5362662635).

The spelling of 1131421324 in words is "one billion, one hundred thirty-one million, four hundred twenty-one thousand, three hundred twenty-four".