124403111040421 has 8 divisors (see below), whose sum is σ = 124767960902424. Its totient is φ = 124038331422720.

The previous prime is 124403111040347. The next prime is 124403111040463. The reversal of 124403111040421 is 124040111304421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28655144302500 + 95747966737921 = 5353050^2 + 9785089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 124403111040421 - 2¹⁹ = 124403110516133 is a prime.

It is a super-2 number, since 2×124403111040421² (a number of 29 digits) contains 22 as substring.

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 124403111040421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124403111040491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14012820 + ... + 21098941.

It is an arithmetic number, because the mean of its divisors is an integer number (15595995112803).

Almost surely, 2^{124403111040421} is an apocalyptic number.

It is an amenable number.

124403111040421 is a deficient number, since it is larger than the sum of its proper divisors (364849862003).

124403111040421 is a wasteful number, since it uses less digits than its factorization.

124403111040421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35122151.

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

Adding to 124403111040421 its reverse (124040111304421), we get a palindrome (248443222344842).

The spelling of 124403111040421 in words is "one hundred twenty-four trillion, four hundred three billion, one hundred eleven million, forty thousand, four hundred twenty-one".