21301010313 has 24 divisors (see below), whose sum is σ = 32088559776. Its totient is φ = 12464524800.

The previous prime is 21301010293. The next prime is 21301010327. The reversal of 21301010313 is 31301010312.

It is not a de Polignac number, because 21301010313 - 2¹⁸ = 21300748169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21301010292 and 21301010301.

It is not an unprimeable number, because it can be changed into a prime (21301010363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356008 + ... + 411513.

It is an arithmetic number, because the mean of its divisors is an integer number (1337023324).

Almost surely, 2^21301010313 is an apocalyptic number.

It is an amenable number.

21301010313 is a deficient number, since it is larger than the sum of its proper divisors (10787549463).

21301010313 is a wasteful number, since it uses less digits than its factorization.

21301010313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767593 (or 767564 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21301010313 its reverse (31301010312), we get a palindrome (52602020625).

Subtracting 21301010313 from its reverse (31301010312), we obtain a palindrome (9999999999).

The spelling of 21301010313 in words is "twenty-one billion, three hundred one million, ten thousand, three hundred thirteen".