131130423 has 24 divisors (see below), whose sum is σ = 198184896. Its totient is φ = 83462400.

The previous prime is 131130361. The next prime is 131130437. The reversal of 131130423 is 324031131.

It is not a de Polignac number, because 131130423 - 2⁶ = 131130359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131130396 and 131130405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131130443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13563 + ... + 21123.

It is an arithmetic number, because the mean of its divisors is an integer number (8257704).

Almost surely, 2^131130423 is an apocalyptic number.

131130423 is a deficient number, since it is larger than the sum of its proper divisors (67054473).

131130423 is a wasteful number, since it uses less digits than its factorization.

131130423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7655 (or 7652 counting only the distinct ones).

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

The square root of 131130423 is about 11451.2192800592. The cubic root of 131130423 is about 508.0437980197.

Adding to 131130423 its reverse (324031131), we get a palindrome (455161554).

The spelling of 131130423 in words is "one hundred thirty-one million, one hundred thirty thousand, four hundred twenty-three".