124311243 has 16 divisors (see below), whose sum is σ = 199397120. Its totient is φ = 67296096.

The previous prime is 124311241. The next prime is 124311247. The reversal of 124311243 is 342113421.

It is not a de Polignac number, because 124311243 - 2¹ = 124311241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124311241) 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, 155380 + ... + 156177.

It is an arithmetic number, because the mean of its divisors is an integer number (12462320).

Almost surely, 2^124311243 is an apocalyptic number.

124311243 is a deficient number, since it is larger than the sum of its proper divisors (75085877).

124311243 is a wasteful number, since it uses less digits than its factorization.

124311243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311586.

The product of its digits is 576, while the sum is 21.

The square root of 124311243 is about 11149.4951903662. The cubic root of 124311243 is about 499.0799654445.

Adding to 124311243 its reverse (342113421), we get a palindrome (466424664).

The spelling of 124311243 in words is "one hundred twenty-four million, three hundred eleven thousand, two hundred forty-three".