21301311002232 has 32 divisors (see below), whose sum is σ = 54258056329680. Its totient is φ = 6966466490880.

The previous prime is 21301311002227. The next prime is 21301311002239. The reversal of 21301311002232 is 23220011310312.

It is a junction number, because it is equal to n+sod(n) for n = 21301311002199 and 21301311002208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301311002239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8373155569 + ... + 8373158112.

Almost surely, 2^{21301311002232} is an apocalyptic number.

It is an amenable number.

21301311002232 is an abundant number, since it is smaller than the sum of its proper divisors (32956745327448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21301311002232 is a wasteful number, since it uses less digits than its factorization.

21301311002232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16746313743 (or 16746313739 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21301311002232 its reverse (23220011310312), we get a palindrome (44521322312544).

The spelling of 21301311002232 in words is "twenty-one trillion, three hundred one billion, three hundred eleven million, two thousand, two hundred thirty-two".