1211431324 has 12 divisors (see below), whose sum is σ = 2134045648. Its totient is φ = 601704000.

The previous prime is 1211431313. The next prime is 1211431327. The reversal of 1211431324 is 4231341121.

It is a super-3 number, since 3×1211431324³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1211431295 and 1211431304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211431327) 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, 1002237 + ... + 1003444.

Almost surely, 2^1211431324 is an apocalyptic number.

It is an amenable number.

1211431324 is a deficient number, since it is larger than the sum of its proper divisors (922614324).

1211431324 is a wasteful number, since it uses less digits than its factorization.

1211431324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2005836 (or 2005834 counting only the distinct ones).

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

The square root of 1211431324 is about 34805.6220171397. The cubic root of 1211431324 is about 1066.0222425654.

Adding to 1211431324 its reverse (4231341121), we get a palindrome (5442772445).

The spelling of 1211431324 in words is "one billion, two hundred eleven million, four hundred thirty-one thousand, three hundred twenty-four".