21204341241 has 8 divisors (see below), whose sum is σ = 28273799424. Its totient is φ = 14135555280.

The previous prime is 21204341239. The next prime is 21204341243. The reversal of 21204341241 is 14214340212.

It is an interprime number because it is at equal distance from previous prime (21204341239) and next prime (21204341243).

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

It is not a de Polignac number, because 21204341241 - 2¹ = 21204341239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21204341243) 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, 89161 + ... + 224406.

It is an arithmetic number, because the mean of its divisors is an integer number (3534224928).

Almost surely, 2^21204341241 is an apocalyptic number.

It is an amenable number.

21204341241 is a deficient number, since it is larger than the sum of its proper divisors (7069458183).

21204341241 is a wasteful number, since it uses less digits than its factorization.

21204341241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336111.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 21204341241 its reverse (14214340212), we get a palindrome (35418681453).

The spelling of 21204341241 in words is "twenty-one billion, two hundred four million, three hundred forty-one thousand, two hundred forty-one".