124331440213421 has 8 divisors (see below), whose sum is σ = 142233900181440. Its totient is φ = 106464186658368.

The previous prime is 124331440213403. The next prime is 124331440213433. The reversal of 124331440213421 is 124312044133421.

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

It is a de Polignac number, because none of the positive numbers 2^k-124331440213421 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 (124331440213481) 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, 8801595671 + ... + 8801609796.

It is an arithmetic number, because the mean of its divisors is an integer number (17779237522680).

Almost surely, 2^{124331440213421} is an apocalyptic number.

It is an amenable number.

124331440213421 is a deficient number, since it is larger than the sum of its proper divisors (17902459968019).

124331440213421 is a wasteful number, since it uses less digits than its factorization.

124331440213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17603206483.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 124331440213421 its reverse (124312044133421), we get a palindrome (248643484346842).

The spelling of 124331440213421 in words is "one hundred twenty-four trillion, three hundred thirty-one billion, four hundred forty million, two hundred thirteen thousand, four hundred twenty-one".