20343240420125 has 16 divisors (see below), whose sum is σ = 29015273194752. Its totient is φ = 13949650573200.

The previous prime is 20343240420121. The next prime is 20343240420127. The reversal of 20343240420125 is 52102404234302.

It is not a de Polignac number, because 20343240420125 - 2² = 20343240420121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20343240420091 and 20343240420100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343240420121) 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, 11624707937 + ... + 11624709686.

It is an arithmetic number, because the mean of its divisors is an integer number (1813454574672).

Almost surely, 2^{20343240420125} is an apocalyptic number.

20343240420125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20343240420125 is a deficient number, since it is larger than the sum of its proper divisors (8672032774627).

20343240420125 is an equidigital number, since it uses as much as digits as its factorization.

20343240420125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23249417645 (or 23249417635 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 20343240420125 its reverse (52102404234302), we get a palindrome (72445644654427).

The spelling of 20343240420125 in words is "twenty trillion, three hundred forty-three billion, two hundred forty million, four hundred twenty thousand, one hundred twenty-five".