21534104302 has 8 divisors (see below), whose sum is σ = 32303287296. Its totient is φ = 10766341872.

The previous prime is 21534104299. The next prime is 21534104311. The reversal of 21534104302 is 20340143512.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316398 + ... + 378385.

It is an arithmetic number, because the mean of its divisors is an integer number (4037910912).

Almost surely, 2^21534104302 is an apocalyptic number.

21534104302 is a deficient number, since it is larger than the sum of its proper divisors (10769182994).

21534104302 is a wasteful number, since it uses less digits than its factorization.

21534104302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710282.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 21534104302 its reverse (20340143512), we get a palindrome (41874247814).

The spelling of 21534104302 in words is "twenty-one billion, five hundred thirty-four million, one hundred four thousand, three hundred two".