21124530013097 has 16 divisors (see below), whose sum is σ = 24383244637440. Its totient is φ = 17926140773952.

The previous prime is 21124530013079. The next prime is 21124530013117. The reversal of 21124530013097 is 79031003542112.

It is a cyclic number.

It is not a de Polignac number, because 21124530013097 - 2¹⁰ = 21124530012073 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21124530013097.

It is not an unprimeable number, because it can be changed into a prime (21124530013007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1232822 + ... + 6615807.

It is an arithmetic number, because the mean of its divisors is an integer number (1523952789840).

Almost surely, 2^{21124530013097} is an apocalyptic number.

It is an amenable number.

21124530013097 is a deficient number, since it is larger than the sum of its proper divisors (3258714624343).

21124530013097 is a wasteful number, since it uses less digits than its factorization.

21124530013097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7852472.

The product of its (nonzero) digits is 45360, while the sum is 38.

The spelling of 21124530013097 in words is "twenty-one trillion, one hundred twenty-four billion, five hundred thirty million, thirteen thousand, ninety-seven".