21301244312 has 16 divisors (see below), whose sum is σ = 39941547000. Its totient is φ = 10650165120.

The previous prime is 21301244269. The next prime is 21301244333. The reversal of 21301244312 is 21344210312.

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, 220064 + ... + 301712.

Almost surely, 2^21301244312 is an apocalyptic number.

It is an amenable number.

21301244312 is a deficient number, since it is larger than the sum of its proper divisors (18640302688).

21301244312 is a wasteful number, since it uses less digits than its factorization.

21301244312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114266 (or 114262 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21301244312 its reverse (21344210312), we get a palindrome (42645454624).

The spelling of 21301244312 in words is "twenty-one billion, three hundred one million, two hundred forty-four thousand, three hundred twelve".