21340003334 has 16 divisors (see below), whose sum is σ = 34476750672. Its totient is φ = 9847964448.

The previous prime is 21340003309. The next prime is 21340003343. The reversal of 21340003334 is 43330004312.

It is a super-2 number, since 2×21340003334² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170912 + ... + 268124.

It is an arithmetic number, because the mean of its divisors is an integer number (2154796917).

Almost surely, 2^21340003334 is an apocalyptic number.

21340003334 is a deficient number, since it is larger than the sum of its proper divisors (13136747338).

21340003334 is a wasteful number, since it uses less digits than its factorization.

21340003334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105671.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21340003334 its reverse (43330004312), we get a palindrome (64670007646).

The spelling of 21340003334 in words is "twenty-one billion, three hundred forty million, three thousand, three hundred thirty-four".