21101024313 has 48 divisors (see below), whose sum is σ = 33472158720. Its totient is φ = 13246676496.

The previous prime is 21101024213. The next prime is 21101024323. The reversal of 21101024313 is 31342010112.

It is not a de Polignac number, because 21101024313 - 2¹⁰ = 21101023289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21101024323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 757356 + ... + 784722.

It is an arithmetic number, because the mean of its divisors is an integer number (697336640).

Almost surely, 2^21101024313 is an apocalyptic number.

It is an amenable number.

21101024313 is a deficient number, since it is larger than the sum of its proper divisors (12371134407).

21101024313 is a wasteful number, since it uses less digits than its factorization.

21101024313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27568 (or 27556 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21101024313 its reverse (31342010112), we get a palindrome (52443034425).

The spelling of 21101024313 in words is "twenty-one billion, one hundred one million, twenty-four thousand, three hundred thirteen".