20345313005 has 8 divisors (see below), whose sum is σ = 24606615552. Its totient is φ = 16148090448.

The previous prime is 20345312963. The next prime is 20345313019. The reversal of 20345313005 is 50031354302.

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 20345313005 - 2⁸ = 20345312749 is a prime.

It is a super-2 number, since 2×20345313005² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16019297 + ... + 16020566.

It is an arithmetic number, because the mean of its divisors is an integer number (3075826944).

Almost surely, 2^20345313005 is an apocalyptic number.

It is an amenable number.

20345313005 is a deficient number, since it is larger than the sum of its proper divisors (4261302547).

20345313005 is a wasteful number, since it uses less digits than its factorization.

20345313005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32039995.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 20345313005 its reverse (50031354302), we get a palindrome (70376667307).

The spelling of 20345313005 in words is "twenty billion, three hundred forty-five million, three hundred thirteen thousand, five".