43131023 has 8 divisors (see below), whose sum is σ = 49181328. Its totient is φ = 37471104.

The previous prime is 43130987. The next prime is 43131031. The reversal of 43131023 is 32013134.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 43131023 - 2⁶ = 43130959 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43130992 and 43131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43131043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97361 + ... + 97802.

It is an arithmetic number, because the mean of its divisors is an integer number (6147666).

Almost surely, 2^43131023 is an apocalyptic number.

43131023 is a deficient number, since it is larger than the sum of its proper divisors (6050305).

43131023 is a wasteful number, since it uses less digits than its factorization.

43131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195193.

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

The square root of 43131023 is about 6567.4213356537. The cubic root of 43131023 is about 350.6952791297.

Adding to 43131023 its reverse (32013134), we get a palindrome (75144157).

The spelling of 43131023 in words is "forty-three million, one hundred thirty-one thousand, twenty-three".