21010532441 has 8 divisors (see below), whose sum is σ = 22964073984. Its totient is φ = 19136727360.

The previous prime is 21010532437. The next prime is 21010532461. The reversal of 21010532441 is 14423501012.

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

It is a cyclic number.

It is not a de Polignac number, because 21010532441 - 2² = 21010532437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21010532461) 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, 19933565 + ... + 19934618.

It is an arithmetic number, because the mean of its divisors is an integer number (2870509248).

Almost surely, 2^21010532441 is an apocalyptic number.

It is an amenable number.

21010532441 is a deficient number, since it is larger than the sum of its proper divisors (1953541543).

21010532441 is a wasteful number, since it uses less digits than its factorization.

21010532441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39868231.

The product of its (nonzero) digits is 960, while the sum is 23.

The spelling of 21010532441 in words is "twenty-one billion, ten million, five hundred thirty-two thousand, four hundred forty-one".