21035355334 has 24 divisors (see below), whose sum is σ = 36710083008. Its totient is φ = 9013793040.

The previous prime is 21035355317. The next prime is 21035355337. The reversal of 21035355334 is 43355353012.

It is a self number, because there is not a number n which added to its sum of digits gives 21035355334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21035355337) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 900952 + ... + 924004.

It is an arithmetic number, because the mean of its divisors is an integer number (1529586792).

Almost surely, 2^21035355334 is an apocalyptic number.

21035355334 is a deficient number, since it is larger than the sum of its proper divisors (15674727674).

21035355334 is a wasteful number, since it uses less digits than its factorization.

21035355334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32380 (or 32373 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 34.

The spelling of 21035355334 in words is "twenty-one billion, thirty-five million, three hundred fifty-five thousand, three hundred thirty-four".