21004334343334 has 8 divisors (see below), whose sum is σ = 32358028583088. Its totient is φ = 10218324815640.

The previous prime is 21004334343331. The next prime is 21004334343397. The reversal of 21004334343334 is 43334343340012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21004334343334² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 21004334343293 and 21004334343302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21004334343331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141921177922 + ... + 141921178069.

It is an arithmetic number, because the mean of its divisors is an integer number (4044753572886).

Almost surely, 2^{21004334343334} is an apocalyptic number.

21004334343334 is a deficient number, since it is larger than the sum of its proper divisors (11353694239754).

21004334343334 is a wasteful number, since it uses less digits than its factorization.

21004334343334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283842356030.

The product of its (nonzero) digits is 373248, while the sum is 37.

Adding to 21004334343334 its reverse (43334343340012), we get a palindrome (64338677683346).

The spelling of 21004334343334 in words is "twenty-one trillion, four billion, three hundred thirty-four million, three hundred forty-three thousand, three hundred thirty-four".