21000241332 has 48 divisors (see below), whose sum is σ = 62222939520. Its totient is φ = 6000068736.

The previous prime is 21000241331. The next prime is 21000241387. The reversal of 21000241332 is 23314200012.

It is a super-2 number, since 2×21000241332² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21000241331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13888293 + ... + 13889804.

It is an arithmetic number, because the mean of its divisors is an integer number (1296311240).

Almost surely, 2^21000241332 is an apocalyptic number.

It is an amenable number.

21000241332 is an abundant number, since it is smaller than the sum of its proper divisors (41222698188).

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

21000241332 is a wasteful number, since it uses less digits than its factorization.

21000241332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27778117 (or 27778109 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21000241332 its reverse (23314200012), we get a palindrome (44314441344).

The spelling of 21000241332 in words is "twenty-one billion, two hundred forty-one thousand, three hundred thirty-two".