124434402121 has 16 divisors (see below), whose sum is σ = 139228234560. Its totient is φ = 110519009280.

The previous prime is 124434402107. The next prime is 124434402139. The reversal of 124434402121 is 121204434421.

It is a cyclic number.

It is not a de Polignac number, because 124434402121 - 2³¹ = 122286918473 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 124434402121.

It is not an unprimeable number, because it can be changed into a prime (124434402181) 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, 666495 + ... + 832516.

It is an arithmetic number, because the mean of its divisors is an integer number (8701764660).

Almost surely, 2^124434402121 is an apocalyptic number.

It is an amenable number.

124434402121 is a deficient number, since it is larger than the sum of its proper divisors (14793832439).

124434402121 is a wasteful number, since it uses less digits than its factorization.

124434402121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1499304.

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

Adding to 124434402121 its reverse (121204434421), we get a palindrome (245638836542).

The spelling of 124434402121 in words is "one hundred twenty-four billion, four hundred thirty-four million, four hundred two thousand, one hundred twenty-one".