20313242513 has 8 divisors (see below), whose sum is σ = 21594069120. Its totient is φ = 19053586800.

The previous prime is 20313242501. The next prime is 20313242533. The reversal of 20313242513 is 31524231302.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20313242513 - 2⁶ = 20313242449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313242533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5290745 + ... + 5294582.

It is an arithmetic number, because the mean of its divisors is an integer number (2699258640).

Almost surely, 2^20313242513 is an apocalyptic number.

It is an amenable number.

20313242513 is a deficient number, since it is larger than the sum of its proper divisors (1280826607).

20313242513 is a wasteful number, since it uses less digits than its factorization.

20313242513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10585447.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 20313242513 its reverse (31524231302), we get a palindrome (51837473815).

The spelling of 20313242513 in words is "twenty billion, three hundred thirteen million, two hundred forty-two thousand, five hundred thirteen".