124111231 has 4 divisors (see below), whose sum is σ = 124267752. Its totient is φ = 123954712.

The previous prime is 124111219. The next prime is 124111277. The reversal of 124111231 is 132111421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 124111231 - 2⁵ = 124111199 is a prime.

It is a super-2 number, since 2×124111231² = 30807195320670722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124112231) 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, 77065 + ... + 78658.

It is an arithmetic number, because the mean of its divisors is an integer number (31066938).

Almost surely, 2^124111231 is an apocalyptic number.

124111231 is a deficient number, since it is larger than the sum of its proper divisors (156521).

124111231 is an equidigital number, since it uses as much as digits as its factorization.

124111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156520.

The product of its digits is 48, while the sum is 16.

The square root of 124111231 is about 11140.5220254708. The cubic root of 124111231 is about 498.8121549496.

Adding to 124111231 its reverse (132111421), we get a palindrome (256222652).

The spelling of 124111231 in words is "one hundred twenty-four million, one hundred eleven thousand, two hundred thirty-one".