20310632005 has 4 divisors (see below), whose sum is σ = 24372758412. Its totient is φ = 16248505600.

The previous prime is 20310631973. The next prime is 20310632021. The reversal of 20310632005 is 50023601302.

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 10856181249 + 9454450756 = 104193^2 + 97234^2 .

It is not a de Polignac number, because 20310632005 - 2⁵ = 20310631973 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, 2031063196 + ... + 2031063205.

It is an arithmetic number, because the mean of its divisors is an integer number (6093189603).

Almost surely, 2^20310632005 is an apocalyptic number.

It is an amenable number.

20310632005 is a deficient number, since it is larger than the sum of its proper divisors (4062126407).

20310632005 is an equidigital number, since it uses as much as digits as its factorization.

20310632005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4062126406.

The product of its (nonzero) digits is 1080, while the sum is 22.

The spelling of 20310632005 in words is "twenty billion, three hundred ten million, six hundred thirty-two thousand, five".