21241042532 has 24 divisors (see below), whose sum is σ = 37803231480. Its totient is φ = 10440322560.

The previous prime is 21241042531. The next prime is 21241042549. The reversal of 21241042532 is 23524014212.

It can be written as a sum of positive squares in 4 ways, for example, as 1726070116 + 19514972416 = 41546^2 + 139696^2 .

It is not an unprimeable number, because it can be changed into a prime (21241042531) 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, 409094 + ... + 458082.

It is an arithmetic number, because the mean of its divisors is an integer number (1575134645).

Almost surely, 2^21241042532 is an apocalyptic number.

It is an amenable number.

21241042532 is a deficient number, since it is larger than the sum of its proper divisors (16562188948).

21241042532 is a wasteful number, since it uses less digits than its factorization.

21241042532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50831 (or 50829 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 21241042532 its reverse (23524014212), we get a palindrome (44765056744).

The spelling of 21241042532 in words is "twenty-one billion, two hundred forty-one million, forty-two thousand, five hundred thirty-two".