21114043125 has 120 divisors (see below), whose sum is σ = 42042192192. Its totient is φ = 9229440000.

The previous prime is 21114043123. The next prime is 21114043127. The reversal of 21114043125 is 52134041112.

It is an interprime number because it is at equal distance from previous prime (21114043123) and next prime (21114043127).

It is not a de Polignac number, because 21114043125 - 2¹ = 21114043123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21114043095 and 21114043104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114043123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6941605 + ... + 6944645.

Almost surely, 2^21114043125 is an apocalyptic number.

21114043125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

21114043125 is a deficient number, since it is larger than the sum of its proper divisors (20928149067).

21114043125 is an equidigital number, since it uses as much as digits as its factorization.

21114043125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117 (or 3079 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 21114043125 its reverse (52134041112), we get a palindrome (73248084237).

The spelling of 21114043125 in words is "twenty-one billion, one hundred fourteen million, forty-three thousand, one hundred twenty-five".