20540411452403 has 8 divisors (see below), whose sum is σ = 20595366336336. Its totient is φ = 20485475136000.

The previous prime is 20540411452387. The next prime is 20540411452439. The reversal of 20540411452403 is 30425411404502.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20540411452403 - 2⁴ = 20540411452387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20540411452453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2425001 + ... + 6852842.

It is an arithmetic number, because the mean of its divisors is an integer number (2574420792042).

Almost surely, 2^{20540411452403} is an apocalyptic number.

20540411452403 is a deficient number, since it is larger than the sum of its proper divisors (54954883933).

20540411452403 is an equidigital number, since it uses as much as digits as its factorization.

20540411452403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9283765.

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 20540411452403 its reverse (30425411404502), we get a palindrome (50965822856905).

The spelling of 20540411452403 in words is "twenty trillion, five hundred forty billion, four hundred eleven million, four hundred fifty-two thousand, four hundred three".