21102011132 has 6 divisors (see below), whose sum is σ = 36928519488. Its totient is φ = 10551005564.

The previous prime is 21102011129. The next prime is 21102011171. The reversal of 21102011132 is 23111020112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2637751388 + ... + 2637751395.

It is an arithmetic number, because the mean of its divisors is an integer number (6154753248).

Almost surely, 2^21102011132 is an apocalyptic number.

It is an amenable number.

21102011132 is a deficient number, since it is larger than the sum of its proper divisors (15826508356).

21102011132 is a wasteful number, since it uses less digits than its factorization.

21102011132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5275502787 (or 5275502785 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21102011132 its reverse (23111020112), we get a palindrome (44213031244).

The spelling of 21102011132 in words is "twenty-one billion, one hundred two million, eleven thousand, one hundred thirty-two".