124133331421 has 6 divisors (see below), whose sum is σ = 136444075166. Its totient is φ = 112848483000.

The previous prime is 124133331397. The next prime is 124133331449.

124133331421 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 80704855396 + 43428476025 = 284086^2 + 208395^2 .

It is not a de Polignac number, because 124133331421 - 2¹⁷ = 124133200349 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 124133331421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124133331121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 512947530 + ... + 512947771.

Almost surely, 2^124133331421 is an apocalyptic number.

124133331421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124133331421 is a deficient number, since it is larger than the sum of its proper divisors (12310743745).

124133331421 is a wasteful number, since it uses less digits than its factorization.

124133331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1025895323 (or 1025895312 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

It can be divided in two parts, 124133 and 331421, that added together give a palindrome (455554).

The spelling of 124133331421 in words is "one hundred twenty-four billion, one hundred thirty-three million, three hundred thirty-one thousand, four hundred twenty-one".