21238080408041 has 12 divisors (see below), whose sum is σ = 25053487211520. Its totient is φ = 17947673581320.

The previous prime is 21238080408023. The next prime is 21238080408059. The reversal of 21238080408041 is 14080408083212.

It is an interprime number because it is at equal distance from previous prime (21238080408023) and next prime (21238080408059).

It is a de Polignac number, because none of the positive numbers 2^k-21238080408041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21238080408041.

It is not an unprimeable number, because it can be changed into a prime (21238080408241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3052321961 + ... + 3052328918.

It is an arithmetic number, because the mean of its divisors is an integer number (2087790600960).

Almost surely, 2^{21238080408041} is an apocalyptic number.

It is an amenable number.

21238080408041 is a deficient number, since it is larger than the sum of its proper divisors (3815406803479).

21238080408041 is an equidigital number, since it uses as much as digits as its factorization.

21238080408041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6104650964 (or 6104650957 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 41.

The spelling of 21238080408041 in words is "twenty-one trillion, two hundred thirty-eight billion, eighty million, four hundred eight thousand, forty-one".