20543001120125 has 16 divisors (see below), whose sum is σ = 27968362254144. Its totient is φ = 14940364450000.

The previous prime is 20543001120079. The next prime is 20543001120127. The reversal of 20543001120125 is 52102110034502.

It is not a de Polignac number, because 20543001120125 - 2²² = 20542996925821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20543001120094 and 20543001120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20543001120127) 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 15 ways as a sum of consecutive naturals, for example, 7470180851 + ... + 7470183600.

It is an arithmetic number, because the mean of its divisors is an integer number (1748022640884).

Almost surely, 2^{20543001120125} is an apocalyptic number.

20543001120125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20543001120125 is a deficient number, since it is larger than the sum of its proper divisors (7425361134019).

20543001120125 is a wasteful number, since it uses less digits than its factorization.

20543001120125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14940364477 (or 14940364467 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 20543001120125 its reverse (52102110034502), we get a palindrome (72645111154627).

The spelling of 20543001120125 in words is "twenty trillion, five hundred forty-three billion, one million, one hundred twenty thousand, one hundred twenty-five".