21541342255003 has 8 divisors (see below), whose sum is σ = 21840855778800. Its totient is φ = 21243105975168.

The previous prime is 21541342254997. The next prime is 21541342255021. The reversal of 21541342255003 is 30055224314512.

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 21541342255003 - 2³³ = 21532752320411 is a prime.

It is a super-2 number, since 2×21541342255003² (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 (21541342255093) 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, 319277026 + ... + 319344487.

It is an arithmetic number, because the mean of its divisors is an integer number (2730106972350).

Almost surely, 2^{21541342255003} is an apocalyptic number.

21541342255003 is a deficient number, since it is larger than the sum of its proper divisors (299513523797).

21541342255003 is an equidigital number, since it uses as much as digits as its factorization.

21541342255003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638621981.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 21541342255003 its reverse (30055224314512), we get a palindrome (51596566569515).

The spelling of 21541342255003 in words is "twenty-one trillion, five hundred forty-one billion, three hundred forty-two million, two hundred fifty-five thousand, three".