131124023 has 4 divisors (see below), whose sum is σ = 132004200. Its totient is φ = 130243848.

The previous prime is 131124011. The next prime is 131124061. The reversal of 131124023 is 320421131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320421131 = 13729 ⋅23339.

It is a cyclic number.

It is not a de Polignac number, because 131124023 - 2¹⁸ = 130861879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131123992 and 131124010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131124523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439865 + ... + 440162.

It is an arithmetic number, because the mean of its divisors is an integer number (33001050).

Almost surely, 2^131124023 is an apocalyptic number.

131124023 is a deficient number, since it is larger than the sum of its proper divisors (880177).

131124023 is an equidigital number, since it uses as much as digits as its factorization.

131124023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880176.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 131124023 is about 11450.9398304244. The cubic root of 131124023 is about 508.0355326273.

Adding to 131124023 its reverse (320421131), we get a palindrome (451545154).

The spelling of 131124023 in words is "one hundred thirty-one million, one hundred twenty-four thousand, twenty-three".