20541425215043 has 16 divisors (see below), whose sum is σ = 21803120486400. Its totient is φ = 19298462440320.

The previous prime is 20541425215037. The next prime is 20541425215061. The reversal of 20541425215043 is 34051252414502.

It is a cyclic number.

It is not a de Polignac number, because 20541425215043 - 2⁶ = 20541425214979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20541425214988 and 20541425215006.

It is not an unprimeable number, because it can be changed into a prime (20541425215343) 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, 8290571 + ... + 10479332.

It is an arithmetic number, because the mean of its divisors is an integer number (1362695030400).

Almost surely, 2^{20541425215043} is an apocalyptic number.

20541425215043 is a deficient number, since it is larger than the sum of its proper divisors (1261695271357).

20541425215043 is a wasteful number, since it uses less digits than its factorization.

20541425215043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18770402.

The product of its (nonzero) digits is 192000, while the sum is 38.

Adding to 20541425215043 its reverse (34051252414502), we get a palindrome (54592677629545).

The spelling of 20541425215043 in words is "twenty trillion, five hundred forty-one billion, four hundred twenty-five million, two hundred fifteen thousand, forty-three".