21041304153 has 8 divisors (see below), whose sum is σ = 29274858048. Its totient is φ = 13417643184.

The previous prime is 21041304149. The next prime is 21041304161. The reversal of 21041304153 is 35140314012.

It is a happy number.

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

It is not a de Polignac number, because 21041304153 - 2² = 21041304149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21041304113) 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, 152473150 + ... + 152473287.

It is an arithmetic number, because the mean of its divisors is an integer number (3659357256).

Almost surely, 2^21041304153 is an apocalyptic number.

21041304153 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21041304153 is a deficient number, since it is larger than the sum of its proper divisors (8233553895).

21041304153 is a wasteful number, since it uses less digits than its factorization.

21041304153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304946463.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 21041304153 its reverse (35140314012), we get a palindrome (56181618165).

The spelling of 21041304153 in words is "twenty-one billion, forty-one million, three hundred four thousand, one hundred fifty-three".