131224032004 has 12 divisors (see below), whose sum is σ = 247306829644. Its totient is φ = 60564937824.

The previous prime is 131224031999. The next prime is 131224032059. The reversal of 131224032004 is 400230422131.

It can be written as a sum of positive squares in 2 ways, for example, as 39560414404 + 91663617600 = 198898^2 + 302760^2 .

It is a super-3 number, since 3×131224032004³ (a number of 34 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1261769487 + ... + 1261769590.

Almost surely, 2^131224032004 is an apocalyptic number.

It is an amenable number.

131224032004 is a deficient number, since it is larger than the sum of its proper divisors (116082797640).

131224032004 is a wasteful number, since it uses less digits than its factorization.

131224032004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523539094 (or 2523539092 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 131224032004 its reverse (400230422131), we get a palindrome (531454454135).

The spelling of 131224032004 in words is "one hundred thirty-one billion, two hundred twenty-four million, thirty-two thousand, four".