124033300421 has 4 divisors (see below), whose sum is σ = 125426933100. Its totient is φ = 122639667744.

The previous prime is 124033300399. The next prime is 124033300429. The reversal of 124033300421 is 124003330421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 124003330421 = 11593 ⋅10696397.

It can be written as a sum of positive squares in 2 ways, for example, as 70535923396 + 53497377025 = 265586^2 + 231295^2 .

It is a cyclic number.

It is not a de Polignac number, because 124033300421 - 2³⁰ = 122959558597 is a prime.

It is a super-2 number, since 2×124033300421² (a number of 23 digits) 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 (124033300429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696816206 + ... + 696816383.

It is an arithmetic number, because the mean of its divisors is an integer number (31356733275).

Almost surely, 2^124033300421 is an apocalyptic number.

It is an amenable number.

124033300421 is a deficient number, since it is larger than the sum of its proper divisors (1393632679).

124033300421 is an equidigital number, since it uses as much as digits as its factorization.

124033300421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393632678.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 124033300421 its reverse (124003330421), we get a palindrome (248036630842).

The spelling of 124033300421 in words is "one hundred twenty-four billion, thirty-three million, three hundred thousand, four hundred twenty-one".