131004323 has 4 divisors (see below), whose sum is σ = 132004488. Its totient is φ = 130004160.

The previous prime is 131004311. The next prime is 131004337. The reversal of 131004323 is 323400131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131004323 - 2¹² = 131000227 is a prime.

It is a Duffinian number.

131004323 is a modest number, since divided by 4323 gives 131 as remainder.

It is not an unprimeable number, because it can be changed into a prime (131007323) by changing a digit.

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, 499886 + ... + 500147.

It is an arithmetic number, because the mean of its divisors is an integer number (33001122).

Almost surely, 2^131004323 is an apocalyptic number.

131004323 is a deficient number, since it is larger than the sum of its proper divisors (1000165).

131004323 is a wasteful number, since it uses less digits than its factorization.

131004323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000164.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131004323 is about 11445.7119918334. The cubic root of 131004323 is about 507.8808943802.

Adding to 131004323 its reverse (323400131), we get a palindrome (454404454).

The spelling of 131004323 in words is "one hundred thirty-one million, four thousand, three hundred twenty-three".