21114343412 has 24 divisors (see below), whose sum is σ = 38250170112. Its totient is φ = 10187654400.

The previous prime is 21114343409. The next prime is 21114343421. The reversal of 21114343412 is 21434341112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197414 + ... + 284957.

It is an arithmetic number, because the mean of its divisors is an integer number (1593757088).

Almost surely, 2^21114343412 is an apocalyptic number.

It is an amenable number.

21114343412 is a deficient number, since it is larger than the sum of its proper divisors (17135826700).

21114343412 is a wasteful number, since it uses less digits than its factorization.

21114343412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482759 (or 482757 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

Adding to 21114343412 its reverse (21434341112), we get a palindrome (42548684524).

The spelling of 21114343412 in words is "twenty-one billion, one hundred fourteen million, three hundred forty-three thousand, four hundred twelve".