124111434421 has 32 divisors (see below), whose sum is σ = 150764423040. Its totient is φ = 100919291904.

The previous prime is 124111434407. The next prime is 124111434431. The reversal of 124111434421 is 124434111421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 124111434421 - 2⁹ = 124111433909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124111434421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124111434431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170461 + ... + 526573.

It is an arithmetic number, because the mean of its divisors is an integer number (4711388220).

Almost surely, 2^124111434421 is an apocalyptic number.

It is an amenable number.

124111434421 is a deficient number, since it is larger than the sum of its proper divisors (26652988619).

124111434421 is a wasteful number, since it uses less digits than its factorization.

124111434421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356245.

The product of its digits is 3072, while the sum is 28.

Adding to 124111434421 its reverse (124434111421), we get a palindrome (248545545842).

The spelling of 124111434421 in words is "one hundred twenty-four billion, one hundred eleven million, four hundred thirty-four thousand, four hundred twenty-one".