131323001 has 4 divisors (see below), whose sum is σ = 131822592. Its totient is φ = 130823412.

The previous prime is 131322973. The next prime is 131323009. The reversal of 131323001 is 100323131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131323001 - 2⁶ = 131322937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131323009) 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 3 ways as a sum of consecutive naturals, for example, 249401 + ... + 249926.

It is an arithmetic number, because the mean of its divisors is an integer number (32955648).

Almost surely, 2^131323001 is an apocalyptic number.

It is an amenable number.

131323001 is a deficient number, since it is larger than the sum of its proper divisors (499591).

131323001 is an equidigital number, since it uses as much as digits as its factorization.

131323001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499590.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131323001 is about 11459.6248193385. The cubic root of 131323001 is about 508.2923805642.

Adding to 131323001 its reverse (100323131), we get a palindrome (231646132).

The spelling of 131323001 in words is "one hundred thirty-one million, three hundred twenty-three thousand, one".