21533352151342 has 8 divisors (see below), whose sum is σ = 32346772119432. Its totient is φ = 10751094778200.

The previous prime is 21533352151327. The next prime is 21533352151343. The reversal of 21533352151342 is 24315125333512.

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

It is a junction number, because it is equal to n+sod(n) for n = 21533352151295 and 21533352151304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21533352151343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7790647009 + ... + 7790649772.

It is an arithmetic number, because the mean of its divisors is an integer number (4043346514929).

Almost surely, 2^{21533352151342} is an apocalyptic number.

21533352151342 is a deficient number, since it is larger than the sum of its proper divisors (10813419968090).

21533352151342 is a wasteful number, since it uses less digits than its factorization.

21533352151342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15581297474.

The product of its digits is 324000, while the sum is 40.

Adding to 21533352151342 its reverse (24315125333512), we get a palindrome (45848477484854).

The spelling of 21533352151342 in words is "twenty-one trillion, five hundred thirty-three billion, three hundred fifty-two million, one hundred fifty-one thousand, three hundred forty-two".