21434934303 has 24 divisors (see below), whose sum is σ = 32596961280. Its totient is φ = 13535430480.

The previous prime is 21434934299. The next prime is 21434934307. The reversal of 21434934303 is 30343943412.

21434934303 is a `hidden beast` number, since 2 + 1 + 4 + 349 + 3 + 4 + 303 = 666.

It is an interprime number because it is at equal distance from previous prime (21434934299) and next prime (21434934307).

It is not a de Polignac number, because 21434934303 - 2² = 21434934299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21434934307) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1794850 + ... + 1806752.

It is an arithmetic number, because the mean of its divisors is an integer number (1358206720).

Almost surely, 2^21434934303 is an apocalyptic number.

21434934303 is a deficient number, since it is larger than the sum of its proper divisors (11162026977).

21434934303 is a wasteful number, since it uses less digits than its factorization.

21434934303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22459 (or 22456 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 36.

The spelling of 21434934303 in words is "twenty-one billion, four hundred thirty-four million, nine hundred thirty-four thousand, three hundred three".