21330013303132 has 12 divisors (see below), whose sum is σ = 38614679255880. Its totient is φ = 10297247801456.

The previous prime is 21330013303121. The next prime is 21330013303133. The reversal of 21330013303132 is 23130331003312.

It is a junction number, because it is equal to n+sod(n) for n = 21330013303097 and 21330013303106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330013303133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91939712398 + ... + 91939712629.

It is an arithmetic number, because the mean of its divisors is an integer number (3217889937990).

Almost surely, 2^{21330013303132} is an apocalyptic number.

It is an amenable number.

21330013303132 is a deficient number, since it is larger than the sum of its proper divisors (17284665952748).

21330013303132 is a wasteful number, since it uses less digits than its factorization.

21330013303132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183879425060 (or 183879425058 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21330013303132 its reverse (23130331003312), we get a palindrome (44460344306444).

The spelling of 21330013303132 in words is "twenty-one trillion, three hundred thirty billion, thirteen million, three hundred three thousand, one hundred thirty-two".