20413540112303 has 4 divisors (see below), whose sum is σ = 21983812428648. Its totient is φ = 18843267795960.

The previous prime is 20413540112227. The next prime is 20413540112311. The reversal of 20413540112303 is 30321104531402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20413540112303 - 2²⁰ = 20413539063727 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 (20413540192303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785136158153 + ... + 785136158178.

It is an arithmetic number, because the mean of its divisors is an integer number (5495953107162).

Almost surely, 2^{20413540112303} is an apocalyptic number.

20413540112303 is a deficient number, since it is larger than the sum of its proper divisors (1570272316345).

20413540112303 is a wasteful number, since it uses less digits than its factorization.

20413540112303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570272316344.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 20413540112303 its reverse (30321104531402), we get a palindrome (50734644643705).

The spelling of 20413540112303 in words is "twenty trillion, four hundred thirteen billion, five hundred forty million, one hundred twelve thousand, three hundred three".