131243024403 has 24 divisors (see below), whose sum is σ = 190062512640. Its totient is φ = 87269829360.

The previous prime is 131243024359. The next prime is 131243024411. The reversal of 131243024403 is 304420342131.

131243024403 is a `hidden beast` number, since 1 + 312 + 4 + 302 + 4 + 40 + 3 = 666.

It is not a de Polignac number, because 131243024403 - 2²⁵ = 131209469971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131243024443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5818918 + ... + 5841428.

It is an arithmetic number, because the mean of its divisors is an integer number (7919271360).

Almost surely, 2^131243024403 is an apocalyptic number.

131243024403 is a deficient number, since it is larger than the sum of its proper divisors (58819488237).

131243024403 is a wasteful number, since it uses less digits than its factorization.

131243024403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24159 (or 24156 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 131243024403 its reverse (304420342131), we get a palindrome (435663366534).

The spelling of 131243024403 in words is "one hundred thirty-one billion, two hundred forty-three million, twenty-four thousand, four hundred three".