20012313105 has 24 divisors (see below), whose sum is σ = 34693818432. Its totient is φ = 10671446304.

The previous prime is 20012313067. The next prime is 20012313131. The reversal of 20012313105 is 50131321002.

It is not a de Polignac number, because 20012313105 - 2¹⁰ = 20012312081 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260652 + ... + 328578.

It is an arithmetic number, because the mean of its divisors is an integer number (1445575768).

Almost surely, 2^20012313105 is an apocalyptic number.

It is an amenable number.

20012313105 is a deficient number, since it is larger than the sum of its proper divisors (14681505327).

20012313105 is a wasteful number, since it uses less digits than its factorization.

20012313105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74485 (or 74482 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

Adding to 20012313105 its reverse (50131321002), we get a palindrome (70143634107).

The spelling of 20012313105 in words is "twenty billion, twelve million, three hundred thirteen thousand, one hundred five".