131433423 has 16 divisors (see below), whose sum is σ = 197769600. Its totient is φ = 76909280.

The previous prime is 131433383. The next prime is 131433427. The reversal of 131433423 is 324334131.

It is a cyclic number.

It is not a de Polignac number, because 131433423 - 2²⁰ = 130384847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131433393 and 131433402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131433427) 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 15 ways as a sum of consecutive naturals, for example, 67713 + ... + 69626.

It is an arithmetic number, because the mean of its divisors is an integer number (12360600).

Almost surely, 2^131433423 is an apocalyptic number.

131433423 is a deficient number, since it is larger than the sum of its proper divisors (66336177).

131433423 is a wasteful number, since it uses less digits than its factorization.

131433423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137382.

The product of its digits is 2592, while the sum is 24.

The square root of 131433423 is about 11464.4416785119. The cubic root of 131433423 is about 508.4348053157.

Adding to 131433423 its reverse (324334131), we get a palindrome (455767554).

The spelling of 131433423 in words is "one hundred thirty-one million, four hundred thirty-three thousand, four hundred twenty-three".