21120414334 has 8 divisors (see below), whose sum is σ = 31812077088. Its totient is φ = 10516388640.

The previous prime is 21120414331. The next prime is 21120414409. The reversal of 21120414334 is 43341402112.

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 = 21120414299 and 21120414308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120414331) 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, 21908662 + ... + 21909625.

It is an arithmetic number, because the mean of its divisors is an integer number (3976509636).

Almost surely, 2^21120414334 is an apocalyptic number.

21120414334 is a deficient number, since it is larger than the sum of its proper divisors (10691662754).

21120414334 is a wasteful number, since it uses less digits than its factorization.

21120414334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43818530.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 21120414334 its reverse (43341402112), we get a palindrome (64461816446).

The spelling of 21120414334 in words is "twenty-one billion, one hundred twenty million, four hundred fourteen thousand, three hundred thirty-four".