21234104241 has 16 divisors (see below), whose sum is σ = 32366431104. Its totient is φ = 12130136064.

The previous prime is 21234104161. The next prime is 21234104263. The reversal of 21234104241 is 14240143212.

It is not a de Polignac number, because 21234104241 - 2¹³ = 21234096049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21234104741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79056 + ... + 220721.

It is an arithmetic number, because the mean of its divisors is an integer number (2022901944).

Almost surely, 2^21234104241 is an apocalyptic number.

21234104241 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21234104241 is a deficient number, since it is larger than the sum of its proper divisors (11132326863).

21234104241 is a wasteful number, since it uses less digits than its factorization.

21234104241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303160.

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

Adding to 21234104241 its reverse (14240143212), we get a palindrome (35474247453).

The spelling of 21234104241 in words is "twenty-one billion, two hundred thirty-four million, one hundred four thousand, two hundred forty-one".