21041233241 has 8 divisors (see below), whose sum is σ = 24048145344. Its totient is φ = 18034576560.

The previous prime is 21041233237. The next prime is 21041233247. The reversal of 21041233241 is 14233214012.

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

It is not a de Polignac number, because 21041233241 - 2² = 21041233237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21041233247) 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, 169571 + ... + 266151.

It is an arithmetic number, because the mean of its divisors is an integer number (3006018168).

Almost surely, 2^21041233241 is an apocalyptic number.

It is an amenable number.

21041233241 is a deficient number, since it is larger than the sum of its proper divisors (3006912103).

21041233241 is an equidigital number, since it uses as much as digits as its factorization.

21041233241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127711.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21041233241 its reverse (14233214012), we get a palindrome (35274447253).

The spelling of 21041233241 in words is "twenty-one billion, forty-one million, two hundred thirty-three thousand, two hundred forty-one".