20413344013 has 8 divisors (see below), whose sum is σ = 21538778720. Its totient is φ = 19293014160.

The previous prime is 20413343989. The next prime is 20413344047. The reversal of 20413344013 is 31044331402.

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 20413344013 - 2²⁵ = 20379789581 is a prime.

It is a super-2 number, since 2×20413344013² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20413344053) 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, 1267995 + ... + 1283992.

It is an arithmetic number, because the mean of its divisors is an integer number (2692347340).

Almost surely, 2^20413344013 is an apocalyptic number.

It is an amenable number.

20413344013 is a deficient number, since it is larger than the sum of its proper divisors (1125434707).

20413344013 is a wasteful number, since it uses less digits than its factorization.

20413344013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552427.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20413344013 its reverse (31044331402), we get a palindrome (51457675415).

The spelling of 20413344013 in words is "twenty billion, four hundred thirteen million, three hundred forty-four thousand, thirteen".