21213416142032 has 20 divisors (see below), whose sum is σ = 41103644052576. Its totient is φ = 10606024128480.

The previous prime is 21213416142013. The next prime is 21213416142047. The reversal of 21213416142032 is 23024161431212.

It is a self number, because there is not a number n which added to its sum of digits gives 21213416142032.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42490478 + ... + 42986829.

Almost surely, 2^{21213416142032} is an apocalyptic number.

It is an amenable number.

21213416142032 is a deficient number, since it is larger than the sum of its proper divisors (19890227910544).

21213416142032 is a wasteful number, since it uses less digits than its factorization.

21213416142032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85492826 (or 85492820 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 21213416142032 its reverse (23024161431212), we get a palindrome (44237577573244).

The spelling of 21213416142032 in words is "twenty-one trillion, two hundred thirteen billion, four hundred sixteen million, one hundred forty-two thousand, thirty-two".