21130130332 has 6 divisors (see below), whose sum is σ = 36977728088. Its totient is φ = 10565065164.

The previous prime is 21130130321. The next prime is 21130130347. The reversal of 21130130332 is 23303103112.

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, 2641266288 + ... + 2641266295.

Almost surely, 2^21130130332 is an apocalyptic number.

It is an amenable number.

21130130332 is a deficient number, since it is larger than the sum of its proper divisors (15847597756).

21130130332 is a wasteful number, since it uses less digits than its factorization.

21130130332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5282532587 (or 5282532585 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 21130130332 its reverse (23303103112), we get a palindrome (44433233444).

The spelling of 21130130332 in words is "twenty-one billion, one hundred thirty million, one hundred thirty thousand, three hundred thirty-two".