21202310013 has 8 divisors (see below), whose sum is σ = 28871230848. Its totient is φ = 13834131264.

The previous prime is 21202309967. The next prime is 21202310029. The reversal of 21202310013 is 31001320212.

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

It is not a de Polignac number, because 21202310013 - 2²¹ = 21200212861 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21202309974 and 21202310001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21202310093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75185356 + ... + 75185637.

It is an arithmetic number, because the mean of its divisors is an integer number (3608903856).

Almost surely, 2^21202310013 is an apocalyptic number.

It is an amenable number.

21202310013 is a deficient number, since it is larger than the sum of its proper divisors (7668920835).

21202310013 is a wasteful number, since it uses less digits than its factorization.

21202310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150371043.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21202310013 its reverse (31001320212), we get a palindrome (52203630225).

The spelling of 21202310013 in words is "twenty-one billion, two hundred two million, three hundred ten thousand, thirteen".