21312021441134 has 8 divisors (see below), whose sum is σ = 32044328182440. Its totient is φ = 10630578713656.

The previous prime is 21312021441121. The next prime is 21312021441149. The reversal of 21312021441134 is 43114412021312.

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 = 21312021441097 and 21312021441106.

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, 12716002409 + ... + 12716004084.

It is an arithmetic number, because the mean of its divisors is an integer number (4005541022805).

Almost surely, 2^{21312021441134} is an apocalyptic number.

21312021441134 is a deficient number, since it is larger than the sum of its proper divisors (10732306741306).

21312021441134 is a wasteful number, since it uses less digits than its factorization.

21312021441134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25432006914.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 21312021441134 its reverse (43114412021312), we get a palindrome (64426433462446).

The spelling of 21312021441134 in words is "twenty-one trillion, three hundred twelve billion, twenty-one million, four hundred forty-one thousand, one hundred thirty-four".