21330133243132 has 24 divisors (see below), whose sum is σ = 42660433880064. Its totient is φ = 9141449805552.

The previous prime is 21330133243123. The next prime is 21330133243141. The reversal of 21330133243132 is 23134233103312.

It is an interprime number because it is at equal distance from previous prime (21330133243123) and next prime (21330133243141).

It is a junction number, because it is equal to n+sod(n) for n = 21330133243094 and 21330133243103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6523233 + ... + 9231079.

It is an arithmetic number, because the mean of its divisors is an integer number (1777518078336).

Almost surely, 2^{21330133243132} is an apocalyptic number.

It is an amenable number.

21330133243132 is an abundant number, since it is smaller than the sum of its proper divisors (21330300636932).

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

21330133243132 is a wasteful number, since it uses less digits than its factorization.

21330133243132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989185 (or 2989183 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 21330133243132 its reverse (23134233103312), we get a palindrome (44464366346444).

The spelling of 21330133243132 in words is "twenty-one trillion, three hundred thirty billion, one hundred thirty-three million, two hundred forty-three thousand, one hundred thirty-two".