20351334105 has 32 divisors (see below), whose sum is σ = 36203731200. Its totient is φ = 10846970496.

The previous prime is 20351334079. The next prime is 20351334137. The reversal of 20351334105 is 50143315302.

It is not a de Polignac number, because 20351334105 - 2¹⁰ = 20351333081 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162117 + ... + 258813.

It is an arithmetic number, because the mean of its divisors is an integer number (1131366600).

Almost surely, 2^20351334105 is an apocalyptic number.

It is an amenable number.

20351334105 is a deficient number, since it is larger than the sum of its proper divisors (15852397095).

20351334105 is a wasteful number, since it uses less digits than its factorization.

20351334105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98270 (or 98264 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 20351334105 its reverse (50143315302), we get a palindrome (70494649407).

The spelling of 20351334105 in words is "twenty billion, three hundred fifty-one million, three hundred thirty-four thousand, one hundred five".