21234032321054 has 16 divisors (see below), whose sum is σ = 36401908422528. Its totient is φ = 9100122026712.

The previous prime is 21234032321027. The next prime is 21234032321123. The reversal of 21234032321054 is 45012323043212.

It is a super-2 number, since 2×21234032321054² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21234032321054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14050424 + ... + 15488139.

It is an arithmetic number, because the mean of its divisors is an integer number (2275119276408).

Almost surely, 2^{21234032321054} is an apocalyptic number.

21234032321054 is a deficient number, since it is larger than the sum of its proper divisors (15167876101474).

21234032321054 is a wasteful number, since it uses less digits than its factorization.

21234032321054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29589919.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 21234032321054 its reverse (45012323043212), we get a palindrome (66246355364266).

The spelling of 21234032321054 in words is "twenty-one trillion, two hundred thirty-four billion, thirty-two million, three hundred twenty-one thousand, fifty-four".