124400344021 has 8 divisors (see below), whose sum is σ = 126002981120. Its totient is φ = 122798405808.

The previous prime is 124400344001. The next prime is 124400344027. The reversal of 124400344021 is 120443004421.

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 124400344021 - 2¹⁷ = 124400212949 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 (124400344027) 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, 188395 + ... + 533191.

It is an arithmetic number, because the mean of its divisors is an integer number (15750372640).

Almost surely, 2^124400344021 is an apocalyptic number.

It is an amenable number.

124400344021 is a deficient number, since it is larger than the sum of its proper divisors (1602637099).

124400344021 is an equidigital number, since it uses as much as digits as its factorization.

124400344021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349443.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 124400344021 its reverse (120443004421), we get a palindrome (244843348442).

The spelling of 124400344021 in words is "one hundred twenty-four billion, four hundred million, three hundred forty-four thousand, twenty-one".