21133204311342 has 8 divisors (see below), whose sum is σ = 42266408622696. Its totient is φ = 7044401437112.

The previous prime is 21133204311257. The next prime is 21133204311389. The reversal of 21133204311342 is 24311340233112.

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

21133204311342 is an admirable number.

It is a super-2 number, since 2×21133204311342² (a number of 27 digits) contains 22 as substring.

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, 1761100359273 + ... + 1761100359284.

It is an arithmetic number, because the mean of its divisors is an integer number (5283301077837).

Almost surely, 2^{21133204311342} is an apocalyptic number.

21133204311342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21133204311342 is a wasteful number, since it uses less digits than its factorization.

21133204311342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3522200718562.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 21133204311342 its reverse (24311340233112), we get a palindrome (45444544544454).

The spelling of 21133204311342 in words is "twenty-one trillion, one hundred thirty-three billion, two hundred four million, three hundred eleven thousand, three hundred forty-two".