124020231 has 4 divisors (see below), whose sum is σ = 165360312. Its totient is φ = 82680152.

The previous prime is 124020179. The next prime is 124020271. The reversal of 124020231 is 132020421.

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 124020231 - 2⁶ = 124020167 is a prime.

It is a super-2 number, since 2×124020231² = 30762035394586722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 124020231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124020271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20670036 + ... + 20670041.

It is an arithmetic number, because the mean of its divisors is an integer number (41340078).

Almost surely, 2^124020231 is an apocalyptic number.

124020231 is a deficient number, since it is larger than the sum of its proper divisors (41340081).

124020231 is an equidigital number, since it uses as much as digits as its factorization.

124020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41340080.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 124020231 is about 11136.4370873273. The cubic root of 124020231 is about 498.6902132466.

Adding to 124020231 its reverse (132020421), we get a palindrome (256040652).

It can be divided in two parts, 124020 and 231, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 124020231 in words is "one hundred twenty-four million, twenty thousand, two hundred thirty-one".