21532132102 has 64 divisors (see below), whose sum is σ = 37530307584. Its totient is φ = 9176302080.

The previous prime is 21532132099. The next prime is 21532132121. The reversal of 21532132102 is 20123123512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8024053 + ... + 8026735.

It is an arithmetic number, because the mean of its divisors is an integer number (586411056).

Almost surely, 2^21532132102 is an apocalyptic number.

21532132102 is a deficient number, since it is larger than the sum of its proper divisors (15998175482).

21532132102 is a wasteful number, since it uses less digits than its factorization.

21532132102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 21532132102 its reverse (20123123512), we get a palindrome (41655255614).

The spelling of 21532132102 in words is "twenty-one billion, five hundred thirty-two million, one hundred thirty-two thousand, one hundred two".