20104401025043 has 4 divisors (see below), whose sum is σ = 20104410291768. Its totient is φ = 20104391758320.

The previous prime is 20104401024997. The next prime is 20104401025057. The reversal of 20104401025043 is 34052010440102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20104401025043 - 2¹² = 20104401020947 is a prime.

It is a super-2 number, since 2×20104401025043² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20104401025063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565055 + ... + 6366167.

It is an arithmetic number, because the mean of its divisors is an integer number (5026102572942).

Almost surely, 2^{20104401025043} is an apocalyptic number.

20104401025043 is a deficient number, since it is larger than the sum of its proper divisors (9266725).

20104401025043 is an equidigital number, since it uses as much as digits as its factorization.

20104401025043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266724.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 20104401025043 its reverse (34052010440102), we get a palindrome (54156411465145).

The spelling of 20104401025043 in words is "twenty trillion, one hundred four billion, four hundred one million, twenty-five thousand, forty-three".