20183347101205 has 4 divisors (see below), whose sum is σ = 24220016521452. Its totient is φ = 16146677680960.

The previous prime is 20183347101139. The next prime is 20183347101251. The reversal of 20183347101205 is 50210174338102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7217636872356 + 12965710228849 = 2686566^2 + 3600793^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20183347101205 is a prime.

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 3 ways as a sum of consecutive naturals, for example, 2018334710116 + ... + 2018334710125.

It is an arithmetic number, because the mean of its divisors is an integer number (6055004130363).

Almost surely, 2^{20183347101205} is an apocalyptic number.

It is an amenable number.

20183347101205 is a deficient number, since it is larger than the sum of its proper divisors (4036669420247).

20183347101205 is an equidigital number, since it uses as much as digits as its factorization.

20183347101205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4036669420246.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 20183347101205 in words is "twenty trillion, one hundred eighty-three billion, three hundred forty-seven million, one hundred one thousand, two hundred five".