21041310153 has 4 divisors (see below), whose sum is σ = 28055080208. Its totient is φ = 14027540100.

The previous prime is 21041310137. The next prime is 21041310161. The reversal of 21041310153 is 35101314012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21041310153 - 2⁴ = 21041310137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21041310053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3506885023 + ... + 3506885028.

It is an arithmetic number, because the mean of its divisors is an integer number (7013770052).

Almost surely, 2^21041310153 is an apocalyptic number.

It is an amenable number.

21041310153 is a deficient number, since it is larger than the sum of its proper divisors (7013770055).

21041310153 is an equidigital number, since it uses as much as digits as its factorization.

21041310153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013770054.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 21041310153 its reverse (35101314012), we get a palindrome (56142624165).

The spelling of 21041310153 in words is "twenty-one billion, forty-one million, three hundred ten thousand, one hundred fifty-three".