21031314234304 has 56 divisors (see below), whose sum is σ = 45615402094896. Its totient is φ = 9541339392000.

The previous prime is 21031314234277. The next prime is 21031314234313. The reversal of 21031314234304 is 40343241313012.

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, 28303107 + ... + 29036674.

Almost surely, 2^{21031314234304} is an apocalyptic number.

It is an amenable number.

21031314234304 is an abundant number, since it is smaller than the sum of its proper divisors (24584087860592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21031314234304 is a wasteful number, since it uses less digits than its factorization.

21031314234304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57340325 (or 57340315 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21031314234304 its reverse (40343241313012), we get a palindrome (61374555547316).

The spelling of 21031314234304 in words is "twenty-one trillion, thirty-one billion, three hundred fourteen million, two hundred thirty-four thousand, three hundred four".