21302032112 has 20 divisors (see below), whose sum is σ = 41378798760. Its totient is φ = 10623632448.

The previous prime is 21302032067. The next prime is 21302032133. The reversal of 21302032112 is 21123020312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705058 + ... + 1717505.

It is an arithmetic number, because the mean of its divisors is an integer number (2068939938).

Almost surely, 2^21302032112 is an apocalyptic number.

It is an amenable number.

21302032112 is a deficient number, since it is larger than the sum of its proper divisors (20076766648).

21302032112 is a wasteful number, since it uses less digits than its factorization.

21302032112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3422960 (or 3422954 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21302032112 its reverse (21123020312), we get a palindrome (42425052424).

The spelling of 21302032112 in words is "twenty-one billion, three hundred two million, thirty-two thousand, one hundred twelve".