124242412123 has 4 divisors (see below), whose sum is σ = 125944363048. Its totient is φ = 122540461200.

The previous prime is 124242412093. The next prime is 124242412127. The reversal of 124242412123 is 321214242421.

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 124242412123 - 2²¹ = 124240314971 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124242412091 and 124242412100.

It is not an unprimeable number, because it can be changed into a prime (124242412127) 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, 850975353 + ... + 850975498.

It is an arithmetic number, because the mean of its divisors is an integer number (31486090762).

Almost surely, 2^124242412123 is an apocalyptic number.

124242412123 is a deficient number, since it is larger than the sum of its proper divisors (1701950925).

124242412123 is an equidigital number, since it uses as much as digits as its factorization.

124242412123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701950924.

The product of its digits is 6144, while the sum is 28.

Adding to 124242412123 its reverse (321214242421), we get a palindrome (445456654544).

The spelling of 124242412123 in words is "one hundred twenty-four billion, two hundred forty-two million, four hundred twelve thousand, one hundred twenty-three".