124540344221 has 8 divisors (see below), whose sum is σ = 131098666080. Its totient is φ = 117982379088.

The previous prime is 124540344199. The next prime is 124540344223. The reversal of 124540344221 is 122443045421.

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 124540344221 - 2⁶ = 124540344157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124540344223) 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, 920870 + ... + 1047416.

It is an arithmetic number, because the mean of its divisors is an integer number (16387333260).

Almost surely, 2^124540344221 is an apocalyptic number.

It is an amenable number.

124540344221 is a deficient number, since it is larger than the sum of its proper divisors (6558321859).

124540344221 is a wasteful number, since it uses less digits than its factorization.

124540344221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178363.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 124540344221 its reverse (122443045421), we get a palindrome (246983389642).

The spelling of 124540344221 in words is "one hundred twenty-four billion, five hundred forty million, three hundred forty-four thousand, two hundred twenty-one".