131423013 has 16 divisors (see below), whose sum is σ = 195139840. Its totient is φ = 87417792.

The previous prime is 131423011. The next prime is 131423023. The reversal of 131423013 is 310324131.

It is not a de Polignac number, because 131423013 - 2¹ = 131423011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131423011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7245 + ... + 17757.

It is an arithmetic number, because the mean of its divisors is an integer number (12196240).

Almost surely, 2^131423013 is an apocalyptic number.

It is an amenable number.

131423013 is a deficient number, since it is larger than the sum of its proper divisors (63716827).

131423013 is a wasteful number, since it uses less digits than its factorization.

131423013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10985 (or 10979 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 131423013 is about 11463.9876570066. The cubic root of 131423013 is about 508.4213816726.

Adding to 131423013 its reverse (310324131), we get a palindrome (441747144).

The spelling of 131423013 in words is "one hundred thirty-one million, four hundred twenty-three thousand, thirteen".