124343404343421 has 16 divisors (see below), whose sum is σ = 171532209340800. Its totient is φ = 80025903301568.

The previous prime is 124343404343407. The next prime is 124343404343423.

124343404343421 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 124343404343421 - 2¹⁰ = 124343404342397 is a prime.

It is a super-2 number, since 2×124343404343421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124343404343423) 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, 99648966 + ... + 100889063.

It is an arithmetic number, because the mean of its divisors is an integer number (10720763083800).

Almost surely, 2^{124343404343421} is an apocalyptic number.

It is an amenable number.

124343404343421 is a deficient number, since it is larger than the sum of its proper divisors (47188804997379).

124343404343421 is a wasteful number, since it uses less digits than its factorization.

124343404343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200545188.

The product of its (nonzero) digits is 1327104, while the sum is 42.

It can be divided in two parts, 12434340 and 4343421, that added together give a palindrome (16777761).

The spelling of 124343404343421 in words is "one hundred twenty-four trillion, three hundred forty-three billion, four hundred four million, three hundred forty-three thousand, four hundred twenty-one".