20436310013 has 8 divisors (see below), whose sum is σ = 23562472128. Its totient is φ = 17361820224.

The previous prime is 20436310009. The next prime is 20436310039. The reversal of 20436310013 is 31001363402.

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

It is not a de Polignac number, because 20436310013 - 2² = 20436310009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20436310613) 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, 12917231 + ... + 12918812.

It is an arithmetic number, because the mean of its divisors is an integer number (2945309016).

Almost surely, 2^20436310013 is an apocalyptic number.

It is an amenable number.

20436310013 is a deficient number, since it is larger than the sum of its proper divisors (3126162115).

20436310013 is a wasteful number, since it uses less digits than its factorization.

20436310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25836163.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20436310013 its reverse (31001363402), we get a palindrome (51437673415).

The spelling of 20436310013 in words is "twenty billion, four hundred thirty-six million, three hundred ten thousand, thirteen".