21124022042113 has 8 divisors (see below), whose sum is σ = 22366656783360. Its totient is φ = 19881392324160.

The previous prime is 21124022042089. The next prime is 21124022042197. The reversal of 21124022042113 is 31124022042112.

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 21124022042113 - 2³⁷ = 20986583088641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21124022042413) 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, 10599928 + ... + 12434086.

It is an arithmetic number, because the mean of its divisors is an integer number (2795832097920).

Almost surely, 2^{21124022042113} is an apocalyptic number.

It is an amenable number.

21124022042113 is a deficient number, since it is larger than the sum of its proper divisors (1242634741247).

21124022042113 is a wasteful number, since it uses less digits than its factorization.

21124022042113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511647.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 21124022042113 its reverse (31124022042112), we get a palindrome (52248044084225).

Subtracting 21124022042113 from its reverse (31124022042112), we obtain a palindrome (9999999999999).

The spelling of 21124022042113 in words is "twenty-one trillion, one hundred twenty-four billion, twenty-two million, forty-two thousand, one hundred thirteen".