21213441342302 has 8 divisors (see below), whose sum is σ = 34712904014712. Its totient is φ = 9642473337400.

The previous prime is 21213441342229. The next prime is 21213441342343. The reversal of 21213441342302 is 20324314431212.

It is a happy number.

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

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, 482123666849 + ... + 482123666892.

It is an arithmetic number, because the mean of its divisors is an integer number (4339113001839).

Almost surely, 2^{21213441342302} is an apocalyptic number.

21213441342302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21213441342302 is a deficient number, since it is larger than the sum of its proper divisors (13499462672410).

21213441342302 is a wasteful number, since it uses less digits than its factorization.

21213441342302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964247333754.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 21213441342302 its reverse (20324314431212), we get a palindrome (41537755773514).

The spelling of 21213441342302 in words is "twenty-one trillion, two hundred thirteen billion, four hundred forty-one million, three hundred forty-two thousand, three hundred two".