21133242302 has 8 divisors (see below), whose sum is σ = 31701321216. Its totient is φ = 10566135232.

The previous prime is 21133242301. The next prime is 21133242311. The reversal of 21133242302 is 20324233112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21133242302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133242301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185918 + ... + 277185.

It is an arithmetic number, because the mean of its divisors is an integer number (3962665152).

Almost surely, 2^21133242302 is an apocalyptic number.

21133242302 is a deficient number, since it is larger than the sum of its proper divisors (10568078914).

21133242302 is a wasteful number, since it uses less digits than its factorization.

21133242302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485922.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21133242302 its reverse (20324233112), we get a palindrome (41457475414).

The spelling of 21133242302 in words is "twenty-one billion, one hundred thirty-three million, two hundred forty-two thousand, three hundred two".