124004344421 has 4 divisors (see below), whose sum is σ = 124005099552. Its totient is φ = 124003589292.

The previous prime is 124004344411. The next prime is 124004344441. The reversal of 124004344421 is 124443400421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 124004344421 - 2²² = 124000150117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124004344411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15521 + ... + 498246.

It is an arithmetic number, because the mean of its divisors is an integer number (31001274888).

Almost surely, 2^124004344421 is an apocalyptic number.

It is an amenable number.

124004344421 is a deficient number, since it is larger than the sum of its proper divisors (755131).

124004344421 is an equidigital number, since it uses as much as digits as its factorization.

124004344421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755130.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 124004344421 its reverse (124443400421), we get a palindrome (248447744842).

The spelling of 124004344421 in words is "one hundred twenty-four billion, four million, three hundred forty-four thousand, four hundred twenty-one".