21333343034 has 4 divisors (see below), whose sum is σ = 32000014554. Its totient is φ = 10666671516.

The previous prime is 21333343021. The next prime is 21333343037. The reversal of 21333343034 is 43034333312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20148950809 + 1184392225 = 141947^2 + 34415^2 .

It is a super-2 number, since 2×21333343034² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21333342988 and 21333343006.

It is not an unprimeable number, because it can be changed into a prime (21333343037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5333335757 + ... + 5333335760.

Almost surely, 2^21333343034 is an apocalyptic number.

21333343034 is a deficient number, since it is larger than the sum of its proper divisors (10666671520).

21333343034 is a wasteful number, since it uses less digits than its factorization.

21333343034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666671519.

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 21333343034 its reverse (43034333312), we get a palindrome (64367676346).

The spelling of 21333343034 in words is "twenty-one billion, three hundred thirty-three million, three hundred forty-three thousand, thirty-four".